Order ID:89JHGSJE83839  Style:APA/MLA/Harvard/Chicago  Pages:510 
Instructions:
Hypothesis Test for a Population Worksheet
A group of 75 college students from a liberal arts college were randomly sampled and asked about the number of alcoholic drinks they have in a typical week. The file containing the data is linked below. The purpose of this study (Links to an external site.) was to compare the drinking habits of the students at the college to the drinking habits of college students in general. In particular, the dean of students, who initiated this study, would like to check whether the mean number of alcoholic drinks that students at his college have in a typical week differs from the mean of U.S. college students in general, which is estimated to be 4.73.
Variables
The number of alcoholic beverages a student consumes in a week.
Data: Hypothesis test results:
Variable  Sample Mean  Std. Err.  DF  TStat  Pvalue 
number of drinks per week  3.9333333  0.43592434  74  1.8275343  0.0717 
Prompt
The drinks datafile is available in the Data section below.
Let μ be the mean number of alcoholic beverages that students in the liberal arts college drink in a typical week. State the hypotheses.
Here is a histogram of the data. Can we safely use the ttest with this data? Explain.
Perform the ttest using StatCrunch. (directions)
Copy and paste the information from the StatCrunch output window into your initial post.
Based on the Pvalue, state your conclusions in context. Use a 5% level of significance.
NOTE: You do not need to double the Pvalue for this twotailed test. StatCrunch calculates the Pvalue for you.
Using the context of this scenario, explain the meaning of each of following items from the StatCrunch output for the hypothesis test.
Std. Err (standard error)
Tstat (Tscore)
Pvalue
EXAMPLE TO ANSWER
Ho: μ = 4.73
Ha: μ ≠ 4.73
3.
One sample T hypothesis test:
μ : Mean of variable
H_{0} : μ = 4.73
H_{A} : μ ≠ 4.73
Hypothesis test results:
Variable  Sample Mean  Std. Err.  DF  TStat  Pvalue 
number of drinks per week  3.9333333  0.43592434  74  1.8275343  0.0717 
1.434>0.05
We do not have enough evidence to reject the null hypothesis that the average amount of alcoholic beverages that students at this college drink is the same as the national average.
Hypothesis Test for a Population Worksheet
Hypothesis Test for a Population Worksheet
RUBRIC 

Excellent Quality 95100%

Introduction
4541 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 9184 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. 
Methodology 5853 points Content is wellorganized 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. 

Average Score 5085% 
4038 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. 
8376 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. 
5249 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. 

Poor Quality 045% 
371 points The background and/or significance are missing. No search history information is provided. 
751 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. 
481 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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Hypothesis Test for a Population Worksheet 
Hypothesis Test for a Population Worksheet