Statistics For Business Decision Making
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Statistics For Business Decision Making?
Regression Analysis:
A local grocery store in Abu Dhabi wants to predict its daily sales in dirhams. The manager believes that the amount of newspaper advertising significantly affects the store’s sales. He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dirhams) and advertising expenditures (in thousands of dirhams). The Excel/MegaStat output given below summarizes the results of the regression model.
At a significance level of .05, test the significance of the slope and state your conclusion.?
Regression Analysis:
A local grocery store in Abu Dhabi wants to predict its daily sales in dirhams. The manager believes that the amount of newspaper advertising significantly affects the store’s sales. He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dirhams) and advertising expenditures (in thousands of dirhams). The Excel/MegaStat output given below summarizes the results of the regression model.
What is the value of the simple coefficient of determination???
Regression Analysis:
A local grocery store in Abu Dhabi wants to predict its daily sales in dirhams. The manager believes that the amount of newspaper advertising significantly affects the store’s sales. He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dirhams) and advertising expenditures (in thousands of dirhams). The Excel/MegaStat output given below summarizes the results of the regression model.
If the manager decides to spend 3000 AED on advertising, based on the simple linear regression results given above, what are the estimated sales??
Regression Analysis:
A local grocery store in Abu Dhabi wants to predict its daily sales in dirhams. The manager believes that the amount of newspaper advertising significantly affects the store’s sales. He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dirhams) and advertising expenditures (in thousands of dirhams). The Excel/MegaStat output given below summarizes the results of the regression model.
What are the limits of the 99 percent prediction interval of the daily sales in dirhams of an individual grocery store that has spent 3000 AED on advertising expenditures? The distance value for this particular prediction is reported as .164.?
Regression Analysis:
A local grocery store in Abu Dhabi wants to predict its daily sales in dirhams. The manager believes that the amount of newspaper advertising significantly affects the store’s sales. He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dirhams) and advertising expenditures (in thousands of dirhams). The Excel/MegaStat output given below summarizes the results of the regression model.
Determine a 95 percent confidence interval estimate of the daily average store sales based on 3000 AED advertising expenditures. The distance value for this particular prediction is reported as .164.?
RUBRIC
Excellent Quality
95-100%
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.
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.
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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