Asked by MIRTEMUR SHAKIROV on Apr 28, 2024
Verified
The general manager of a chain of fast food chicken restaurants wants to determine how effective their promotional campaigns are. In these campaigns "20% off" coupons are widely distributed. These coupons are only valid for one week. To examine their effectiveness, the executive records the daily gross sales (in $1,000s) in one restaurant during the campaign and during the week after the campaign ends. The data is shown below. 
Can they infer at the 5% significance level that sales increase during the campaign?
Use the Data Analysis software if you prefer.
Test statistic = ______________
Critical Value(s) = ______________
Conclusion: ______________
Interpretation: __________________________________________
Estimate with 95% confidence the mean difference.
______________
Promotional Campaigns
Marketing strategies designed to increase awareness, interest, and sales of a product or service through various communication means.
Gross Sales
The total unadjusted income a company generates from sales before any deductions are made.
- Become conversant with the approach to hypothesis testing for distinguishing between two mean figures.
- Conduct the t-test for independent samples using authentic data scenarios.
- Apply and interpret the significance of confidence intervals in assessing the mean deviation between two entities.
Verified Answer
DH
Debbi HinderliterMay 05, 2024
Final Answer :
4.111; 1.943; Reject H0; Sales increase during the campaign; (0.387, 1.527)
Learning Objectives
- Become conversant with the approach to hypothesis testing for distinguishing between two mean figures.
- Conduct the t-test for independent samples using authentic data scenarios.
- Apply and interpret the significance of confidence intervals in assessing the mean deviation between two entities.