Element Identification from Percentage of Isotope

 Element Identification from Percentage of Isotope
Element Identification from Percentage of Isotope

Element Identification from Percentage of Isotope

An element consists of 0.09% of an isotope with a mass of 119.904020 amu, 2.55% of an isotope with a mass of 121.903047 amu, 0.89% of an isotope with a mass of 122.904273 amu, 4.74% of an isotope with a mass of 123.902819amu, 7.07% of an isotope with a mass of 124.904425 amu, 18.84% of an isotope with a mass of 125.903306 amu, 31.74% of an isotope with a mass of 127.904461 amu, and 34.08% of an isotope with mass of 129.906223 amu.

Calculate the atomic mass using the weighted average mass method and identify the element. Write a page report discussing the data and the calculations performed.

Write a report in conformity with the CSU-Global Guide to Writing and APA (Links to an external site.)Links to an external site.. Items that should be included, at a minimum, are a title page, an introduction, a body (which answers the questions posed in the problem), and a conclusion paragraph (that addresses your findings and what you have determined from the data and your analysis). As with all written assignments, you should have in-text citations and a reference page too. In the body of your assignment response, please include any tables of calculations, calculated values, and graphs associated with this problem.

Required

Chapter 4 in Chemistry: An Introduction to General, Organic, and Biological Chemistry

Recommended

Hongguang, C., Xiaoli, D., Shaoqing, L., Chunye, L., & Xiao, S. (2013). Thallium, arsenic, and mercury contamination of soil near the world’s largest and longest-operating tungsten mine. Polish Journal of Environmental Studies, 22(1), 301-305.

Oken, E., Guthrie, L. B., Bloomingdale, A., Platek, D. N., Price, S., Haines, J., & … Wright, R. O. (2013). A pilot randomized controlled trial to promote healthful fish consumption during pregnancy: The food for thought study. Nutrition Journal, 12(1), 1-11. https://www.doi:10.1186/1475-2891-12-33

References

Timberlake, K. (2015). Mastering chemistry with Pearson eText for chemistry: An introduction to general, organic, and biological chemistry (12th ed.). Upper Saddle River, NJ: Pearson Education Inc.

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Effects of age differences on Statistics Anxiety

Effects of age differences on Statistics Anxiety
Effects of age differences on Statistics Anxiety

Effects of age differences on Statistics Anxiety and attitude among undergraduate students

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Effects of age differences on Statistics Anxiety and attitude among undergraduate students

Abstract

Statistical anxiety is proving to be a menace in an educational setting especially for students pursuing a statistics-related course. It is exacerbated when students in non-statistical degree programs like sociology and humanities. The age of students has shown disparities in the group of students where older students have been shown to have greater anxiety than the younger students.

Effects of age differences on Statistics Anxiety and attitude among undergraduate

Apprehension to statistical data is by no means a rarity, as it falls under what psychology refers to as “statistics anxiety.” As bizarre as the term may seem, its reference to a person’s discomfort over dealing with anything about statistics attaches with it a cause of concern relating to the ability to present and interpret valuable data. However, according to Onwuegbuzie & Wilson (2003), about 80% of social and behavioural sciences students still experiences statistics anxiety. Thus, this negatively affects the student’s academic performance, including his/her psychological and physiological conditions (Zehra Ali & Iqbal, 2012). In this sense, the focus of this study is the group of students in non-statistical courses like sociology and humanities. The participants will be categorized into traditional and non-traditional students based on their age differences.

The importance of learning more about statistics anxiety relies on the essence of expanding statistics literacy, which is highly important in a democratic setting, where everyone’s input impacts the course of action (Chew & Dillon, 2014), considering the field’s instrumental contribution to the social sciences. Following fkee & Sulaiman (2014), statistical anxiety can be viewed as an obstacle to the student’s learning. Moreover, it is also found out that there is a significant relationship between intolerance of uncertainty and the age of student that highly promotes statistical anxiety (Legum et al., 2013; Williams, 2015). In the light of age demographics, according to Legum et al. (2013), there is a statistical significance between age and the levels of statistics anxiety where older students have shown greater statistical anxiety as opposed to the younger ones.Also student’s attitude towards statistics course may influence his/her performance. According to Sese’ (2015), attitude shows a strong direct analyst of performance and plays a great mediating role within the student’s academic performance. Students who have negative attitudes and unfavourable attitudes may contribute anxiety and low efficiency towards statistics (Dr. Eduljee & LeBourdais, 2015).

However, in a positive view, statistics anxiety is also a necessary provocation to help students to achieve optimal performance ((Dykerman, 2011); (Chei-Chang, Yu-Min, & Li-Tze, 2014); Macher et al., 2012).

The following hypotheses were constructed in the light of the above review:

  • There is a significant association between age demographics and statistics anxiety
  • Statistics anxiety heavily influences a student’s attitude towards statistical courses.

Many have come to appreciate the importance of literacy in statistics. This has resulted in an increasing number of statistical courses in various degree programs. According to Amanda (2010), close to 80% of the graduates, exhibit statistics anxiety especially in the fields of social and behavioral sciences. As a result, students usually procrastinate their statistics courses because of such fear (Chew & Dillon, 2015). Chew and Dillon (2014) asserts that empirical data provides evidence that those students who are in non-mathematical degree programs claim that statistics and related courses are the ‘most anxiety-inducing courses’ (Chew & Dillon, 2015). As the literature asserts, students in the non-statistical courses are more or less fearful of statistical courses infused in their degree programs (Chew & Dillon, 2015). This paper seeks to investigate the association between age and statistical anxiety in relation to the consequential development of attitude towards statistical courses.

Anxiety refers to worry and fear that an individual develops in anticipation of a threat even though the outcome is uncertain. In this sense, the individual exhibits fear and worry but is unable to point out the source of the anxiety (Jordan, McGladdery & Dyer, 2014). Regardless, he or she expects something harmful and even painful. The outcome of such behavior results in individuals avoiding likely sources of the anguish (Brown & Tallon, 2015). According to Amanda (2010), anxiety also includes the perception of our inability to control future events and that they might be related to several different events. As a result of the lack of control over the future events, anxiety might occur because people worry that things might happen and cause pain or stress (Bui & Alearo, 2011). Anxiety in the academics has been acknowledged extensively and has been asserted to take several forms including mathematics and statistics anxiety. According to Amanda Williams (2013), statistics anxiety has been considered to be “a multi-dimensional construct.” The six components of statistics anxiety include “worth of statistics, interpretation, test, class anxiety, computation self-concept, and the fear of asking help” (Williams, 2013). The aspect of interpretation anxiety refers to the fear and worry developed when students are faced with the task of interpreting the statistical results. Those with high scores on this aspect find statistics to be very provoking (Dykerman, 2011).

Several researchers have correlated it with age differences where they assert that older students exhibit more fear and worry when it comes to mathematical and statistical courses (Morsanyi et al., 2016). A study by Ngoc and (2011) involving 104 participants discovered that older students depicted the highest levels of anxiety as opposed to the younger ones. However, what stands out clear is that statistics anxiety depicted a direct correlation with age (Devaney, 2010). In other words, the traditional students are more anxious when compared to the non-traditional ones.

Methodology

The literature review pointed out that the two groups of students who are to be studied were the traditional and non-traditional students. Following their definition, the traditional students are those who studied mathematics or statistically related courses at the 11th year or below. The non-traditional students, on the other hand, are those who studied after the 11th year which includes the 12th year and university level. The desired sample size was 100 students but downsizing was solely for convenience purposes. A total of 50 students, 26 males and 24 females were involved in the data collection process of this study. Their ages varied from 18 years to 30 years. This is because students older than 30 were present in the university environs but most of them are not undergraduates.

This study involves assessing students to measure their levels of anxiety concerning taking statistical courses. During the data collection process, students were approached randomly regardless of their degree program.

The data was collected via a questionnaire which contains only one open-ended questions. Firstly, the student is to provide a general comment about the course expectations followed by an anxiety scale trying to score their level of anxiety when it comes to the course (Welch et al., 2015). The Likert scale is next component used to measure the attitudes of students followed by the demographic information.

 Results

Frequency Percent Valid Percent Cumulative Percent
Valid 26 and below 30 60.0 61.2 61.2
Above 26 19 38.0 38.8 100.0
Total 49 98.0 100.0
Missing Missing Values 1 2.0
Total 50 100.0

Table 1: Descriptive statistics for the age variable

Frequency Percent Valid Percent Cumulative Percent
Valid Year 11 and Below 14 28.0 28.0 28.0
Year 12 and Above 36 72.0 72.0 100.0
Total 50 100.0 100.0

Table 2: The level of mathematics education

CommentAttitude N Mean Std. Deviation Std. Error Mean
The Approximate attitude of each student towards statistics. Positive 34 31.0588 3.77344 .64714
Negative 16 22.1875 .83417 .20854

Table 3: Group statistics for the independent t test for the student attitude variable.

Levene’s Test for Equality of Variances
F Sig.
The Approximate attitude of each student towards statistics. Equal variances assumed 66.509 .000
Equal variances not assumed

Table 5: The independent t test values for the attitude variable

CommentAnxiety N Mean Std. Deviation Std. Error Mean
The Approximate levels of anxiety for each student. High Anx 11 36.64 1.567 .472
Low Anxi 37 28.70 3.527 .580

Table 6: Group statistics for the independent t test for the level of anxiety

Levene’s Test for Equality of Variances
F Sig.
The Approximate levels of anxiety for each student. Equal variances assumed 4.692 .036
Equal variances not assumed

Table 7: The independent t test for the anxiety variable

CommentAnxiety Total
High Anx Low Anxi
The Students’ age. 26 and below 7 23 30
Above 26 5 14 19
Total 12 37 49

Table 8: A crosstab showing the comparison of the students’ age and levels of anxiety

CommentAttitude Total
Negative Positive
The Students’ age. 26 and below 7 23 30
Above 26 9 10 19
Total 16 33 49

Table 9: A crosstab showing the comparison of the students’ age and attitude

 

CommentAttitude Total
Negative Positive
The Students’ age. 26 and below 7 23 30
Above 26 9 10 19
Total 16 33 49

Table 10: A crosstab showing the students’ level of math education and their attitudes

CommentAnxiety Total
High Anx Low Anxi
The highest level of Math studied. Year 11 and Below 3 11 14
Year 12 4 11 15
University 6 15 21
Total 13 37 50

Table 11: A crosstab showing the students’ level of math education and their level of anxiety

Discussion

Following the study, the age variable was categorized into two groups, those aged 26 years and below, and those above 26 years. The former group refers to the non-traditional students whereas the latter comprised of the traditional ones. 60% of the sample was above 26 years whereas the remaining 40% were above 26 years. Also, 7 out of 30 students aged below 26 years depicted high levels of anxiety while 5 out 19 students aged above 26 years exhibited anxiety. 23 of 30 students remaining aged below 26 years showed low stress levels and 14 of 19 students above 26 years were also not anxious. 7 out 30 students aged below 26 years portrayed a negative attitude while the remaining 23 had a positive attitude. The non-traditional students were more fearful of statistics than the traditional ones. This could be attributed to the fact that the older students had learned about statistics in their recent past coupled with the fact that they also have higher levels of mathematical education (González et al., 2016). For those over 26 years, 9 out of 19 students had a negative attitude while the remaining 10 had a positive attitude. As such, more students with a positive attitude exhibited low levels of anxiety while the few who had a negative attitude had high levels of anxiety and stress.

Following the independent t-test, there were significant differences between the sample group means considering that a significant value of 0.036 was achieved which is less than 0.05. There were several groups obtained from the data extrapolated from the variables and they include high levels of anxiety, low anxiety levels, positive and negative attitude. This statistical finding could be explained by the fact that students with higher levels of anxiety developed a negative attitude towards statistics and vice versa. This study is significant and can prove to be helpful in the development and implementation of interventions for students with statistics anxiety in a bid to reduce the dislike for the non-mathematical courses taking statistics (Morsanyi et al., 2016).

Reference

Bui, N. H., & Alearo, M. A. (2011). Statistics Anxiety And Science Attitudes: Age, Gender, And Ethnicity Factors. College Student Journal45(3), 573-585.

Brown, M. J., & Tallon, J. (2015). The Effects Of pre-Lecture Quizzes On Test Anxiety And Performance In A Statistics Course. Education135(3), 346-350.

Chei-Chang, C., Yu-Min, W., & Li-Tze, L. (2014). Reducing Statistics Anxiety And Enhancing Statistics Learning Achievement: Effectiveness Of A One-Minute Strategy. Psychological Reports115(1), 297-310.

Chew, P. H., & Dillon, D. B. (2015). Statistics Anxiety and Attitudes Toward Statistics. Annual International Conference On Cognitive & Behavioral Psychology, 148-151.

Devaney, T. A. (2010). Anxiety and attitudes of graduate students in on-campus vs. online statistics courses. Journal of Statistics Education, 18(1), 1-15.

Dykeman, B. F. (2011). Statistics Anxiety: Antecedents And Instructional Interventions. Education132(2), 441-446.

Eduljee, N. B., & LeBourdais, P. (2015). Gender differences in statistics anxiety with undergraduate college students. The International Journal of Indian Psychology, 2(3), 69-82.

Erfanmanesh, M. (2016). Information seeking anxiety: Effects of gender, level of study and age. Library Philosoph and Practice (e-journal), 1-20.

González, A., Rodríguez, Y., Faílde, J. M., & Carrera, M. V. (2016). Anxiety in the statistics class: Structural relations with self-concept, intrinsic value, and engagement in two samples of undergraduates. Learning & Individual Differences45214-221.

Jordan, J., McGladdery, G., & Dyer, K. (2014). Dyslexia in Higher Education: Implications for Maths Anxiety, Statistics Anxiety and Psychological Well-being. Dyslexia (10769242)20(3), 225-240.

Legum, H., Schmitt, B., Pointer, M., Murray, R., O’Bryant, B., Owens-Southall, M., & Jeter-Twilley, R. (2013).The relationship between undergraduate and graduate students’ statistical anxiety, worry levels, and their coping skills based on age and gender,The AABSS Journal 17, 305-314.

Macher, D., Papousek, I., Ruggeri, K., and Paechter, M. (2015). Statistics anxiety and performance: Blessings in disguise.Frontiers in Psychology, 6, doi:  10.3389/fpsyg.2015.01116.

Ngoc, B. H., & Alearo, M. A. (2011). Statistics anxiety and science attitudes: age, gender and ethnicity factors. College Student Journal, 55(3), p573.

Sesé, A., Jiménez, R., Montaño, J., & Palmer, A. (2015). Can Attitudes toward Statistics and Statistics Anxiety Explain Students’ Performance? // ¿Pueden las actitudes hacia la estadística y la ansiedad estadística explicar el rendimiento de losestudiantes?.REV PSICODIDACT, 20(2), 285-304. http://dx.doi.org/10.1387/revpsicodidact.13080.

Welch, P. S., Jacks, M. E., Smiley, L. A., Walden, C. E., Clark, W. D., & Nguyen, C. A. (2015). A Study of Statistics Anxiety Levels of Graduate Dental Hygiene Students. Journal Of Dental Hygiene89(1), 46-54.

Williams, A. S. (2013). Worry, Intolerance of Uncertainty, and Statistics Anxiety. Statistics Education Research Journal, 12(1), 48-59.

Williams, A. (2015). Statistics anxiety and worry: the roles of worry beliefs, negative problem orientation, and cognitive avoidance, Statistics Education Research Journal, 14(2), 53-75.

Zehra Ali, A. & Iqbal, F. (2012). Statistics Anxiety among Psychology Graduates: An Analysis, 53, 113. http://dx.doi.org/10.7763/IPEDR. 2012.

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Research Data collection Techniques

Research Data collection Techniques
           Research Data collection                                    Techniques

Research Data collection Techniques

  • What is Participant Observation? Why is it useful? advantages and disadvantages?

Participant-observation is a method where researchers choose to live directly in the cultural group they are studying. By living and immersing oneself within a culture for a long period of time, participant-observation allows anthropologists to get deeper into the complexity of culture.

  • What is Interview checklist? Why is it useful? advantages and disadvantages?
  • What is Coding?(Interview coding)Why is it useful? advantages and disadvantages?
  • What is Visual methodologies? Why is it useful? advantages and disadvantages?

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Research Design Presentation and Rationale

Research Design Presentation and Rationale
Research Design Presentation and Rationale

Research Design Presentation and Rationale

Prior to beginning work on this interactive assignment, it is recommended that you review the recommended resources for this week as they will assist you in the creation of an effective presentation of your Research Design.

This interactive assignment will provide you with an opportunity to create a dynamic presentation of some of the materials you are creating for your Research Proposal. This type of presentation would be used in the professional world to request Institutional Review Board (IRB) approval, and potentially elicit funding, for your research.

In your presentation, summarize the main points and ideas for your Research Design. Over the course of the week, you will have the opportunity to share feedback and suggestions with your classmates and instructor, which may assist you in improving your research proposal before submitting the Research Proposal.

For this interactive assignment, create a presentation file using PowerPoint and then create a three- to five-minute screencast video of your presentation with pertinent audio that includes important points about the content of each slide. In order to make sure your video remains within the 3-5 minute time requirement, create a script for your screencast video. You must attach your script to your initial post. It is recommended you rehearse your presentation using your script to ensure that you are within the time limit and that all pertinent information is presented in a manner that is easy to understand. You may use any screencasting software of your choice (e.g., Screencast-O-Matic, Jing, etc.). A quick-start guide is available for Screencast-O-Maticfor your convenience.

The content of the presentation must include the following:

A brief introduction
Devise a specific research question related to the topic you chose in Week One.
Explain the importance of the topic and research question.
A brief literature review
Evaluate published research studies on your topic found during your work on the Weeks One, Two, and Four assignments and identify two relevant published studies.
A description of potential methods
Based on what you have learned about research design options and requirements in this course, create an appropriate research approach and design to investigate your research question.
Provide a rationale for your design choices.
A discussion on ethical issues
Apply ethical standards to the proposed research and identify potential ethical issues that would apply. Explain how you plan to address these issues.
A conclusion
Summarize the main points of the presentation and reiterate why the proposed research is important and why it should be carried out.

In your initial discussion post, introduce your presentation and provide a link to the screencast URL.

Be sure to attach your PowerPoint presentation and script documents to your initial post.

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Artwork Essay Research Paper Available

Artwork
                         Artwork

Artwork

For your “Final Exam” essay (2 pages) please, be prepared to write about one of the following PAIRS of artworks in terms of:

a. Historical importance – both the work of art and the artist: 50 points

b. Their stylistic similarities and/or differences . 50 points

These images will not be projected during the test; you must familiarize yourself with the two works you intend to discuss.

PLEASE REFER TO YOUR BOOK FOR IMAGES..

1. Pablo Picasso, “Ma Jolie”; Georges Braque, “Violin and Palette
2. Eugene Delacroix, “Liberty Leading the People”; Theodore Gericault, “The Raft of the Medusa”
3. Marcel Duchamp, “Fountain”; Hannah Hoch, “Cut With the Dada Knife Through the Last Weimar…..etc.”

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Sizeable Oil and Gas Resources in Cuba

Sizeable Oil and Gas Resources in Cuba You will need to write a 5- page report on the following hypothetical situation: “Sizable oil and gas resources have been discovered off the northwest coast of Cuba.

Sizeable Oil and Gas Resources in Cuba
Sizeable Oil and Gas Resources in Cuba

How is this event likely to affect Cuban economic development as well as the regional, perhaps even global, geopolitics/geo-economics’.” You must base your assessment on data of some kind.

Sizeable Oil and Gas Resources in Cuba Guidelines and Suggestions

The following are suggestions to simplify my life and your life:
1. What is your bottom line? Can you summarize the main points of your argument or interpretation in just a few sentences? If not, then you have not converged sufficiently your main conclusions to be drawn.
2. Don’t just “dump” data on the reader (me). Explain what numbers you are using and why. Otherwise the reader (me) will be overloaded and tune out (not good).
3. Be sure to explain your exact sources for key points, whether facts or assertions. This will aid the reader (me again) evaluate which parts of your work are built on solid rock and which are based on shifting sands.
4. Avoid vagueness. Be direct and specific.

Fulfillment of energy requirements

Fulfillment of energy requirements
Fulfillment of energy requirements

Fulfillment of energy requirements

In what circumstances will nuclear – OR – wind – OR – solar power offer solutions to our energy requirements? (If you choose this option you will be required to incorporate information from The Myth of Green Energy selections in the course reader as one of your sources.

Growth in the world’s population and economy, coupled with rapid urbanization, will result in a substantial increase in energy demand over the coming years. The United Nations (UN) estimates that the world’s population will grow from 7.6 billion in 2017 to 9.8 billion by 2050. The process of urbanisation – which currently adds a city the size of Shanghai to the world’s urban population every four months or so – will result in approximately two-thirds of the world’s people living in urban areas by 2050 (up from 54% in 2014). The challenge of meeting rapidly growing energy demand, whilst reducing harmful emissions of greenhouse gases, is very significant and proving challenging. In 2017 global atmospheric concentrations of carbon dioxide rose by 1.4%, the largest annual rise ever recorded.

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The development of one scientific technology in Ontario

The development of one scientific technology in Ontario
The development of one scientific technology in Ontario

The development of one scientific technology in Ontario (eg Blackberry, Avro Arrow)

The Ontario government maintains an impressive research and development (R&D) infrastructure, including: collaborative networks that bring together public- and private-sector research; and publicly funded research organizations, university labs and prototyping facilities. The support for R&D in Ontario helps innovative companies meet the challenges and leverage the opportunities of global markets.

The Avro Canada CF-105 Arrow (the Arrow) was a supersonic interceptor jet aircraft designed and built in the 1950s by A.V. Roe Canada (Avro). The Arrow was one of the most advanced aircraft of its era, helping to establish Canada as a world leader in scientific research and development.

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Random Sampling vs Sampling Method

Random Sampling vs Sampling Method Compare simple random sampling vs a sampling method of your choice, preferably in context of time series.

Random Sampling vs Sampling Method

Parts to be included-
1. Motivation for each method of sampling
2. Advantages and disadvantages of each method
3. When to use sampling method
4. Problems that can arise when using each method
Important note-proper APA style and references must be written in alphabetically order Description of the assignment must be followed. Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen. A sample chosen randomly is meant to be an unbiased representation of the total population.

Technology Adoption in the Hospitality Industry

Technology Adoption in the Hospitality Industry
Technology Adoption in the Hospitality Industry

Technology Adoption in the Hospitality Industry as a Technology Issue

a. What do you believe are the most significant technology advances being utilized in a hospitality segment of your choice (hotels, food and beverage, travel, events, etc) that impact both guest satisfaction and overall operational efficiency?

b. Do you think technology helps or hinders company strategies to enhance customization and personalization on a global scale?

c. In summary, what technology advances do you see as being a win-win for both the company and its guests, and which ones do you believe that hotels should proceed with caution?

Expectation: It is expected that your answer will be approximately 500-750 words in length (one page to one and one-half pages, single-spaced, 12 point font) and will use a minimum of 3 cited sources from either refereed or reliable industry trade publications. Please be sure to use in-text citations and include a reference list at the end of the question.

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