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Instructions:
Statistics Study Questions
Assignment for Stats 101: Statistics Study Questions
Question 1 of Assignment 2 (12 marks)
You are in command of the online shop design for your firm. You evaluate if a different design will increase the number of visitors to the store who “convert” that is, make a purchase as part of the improvement process.
Customers who visited the online store for one week were randomly assigned to either Design A or Design B. Then it was determined whether or not that visit resulted in a sale.
The outcome of a pivot table created from this test can be found in tab Q1 of your data file, in a format similar to the table below.
Turned into a sale
Converted Wasn’t able to Convert Design A
Design No. B
a) What is the name of the statistical test that you should perform to see if the two designs have different conversion rates? (1 point)
b) For this test, what are the null and alternative hypotheses? (2 points)
Carry out the hypothesis test with a significance level of 5%.
c) Create an anticipated values table and paste it into your answer (2 marks)
d) Using the CHISQ.TEST() function, calculate the p value and report it. (2 points)
e) What are the test’s assumptions? Have they been fulfilled? (2 points)
f) What are your thoughts on the null hypothesis? (1 point)
g) What are your conclusions? (2 points)
2nd question (14 marks)
In this question, you must determine which of two online store designs (designs C and D) results in a higher total purchase among those who make a purchase.
A random sample of purchases was randomly assigned to either Design C or Design D for display. In your data file, the purchase totals for the clients who made a purchase are shown in columns Design C and Design D of tab Q2.
a) Why should you evaluate these data with an independent samples test? (1 point)
c) Establish the test’s parameters. (2 points)
b) For this test, what are the null and alternative hypotheses? (2 points)
Carry out the hypothesis test with a significance level of 5%.
d) In your answer, copy the results from Excel and state the p value. (2 points)
e) What are the test’s assumptions? Have they been fulfilled? (2 points)
f) What are your thoughts on the null hypothesis? (1 point)
g) What are your conclusions? (2 points)
h) What improvements do you have for this way of evaluating the advantages and disadvantages of the two shop designs? (2 points)
RUBRIC |
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Excellent Quality 95-100%
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Introduction
45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Literature Support 91-84 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met. |
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Average Score 50-85% |
40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. |
83-76 points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration. |
52-49 points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met. |
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Poor Quality 0-45% |
37-1 points The background and/or significance are missing. No search history information is provided. |
75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration. |
48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met |
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Statistics Study Questions