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Promotional Campaigns The General Manager of a Chain of Fast Food Chicken

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Promotional Campaigns
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. Promotional Campaigns 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. ​ ​ -{Promotional Campaigns Narrative} Estimate with 95% confidence the mean difference and interpret. ​ ​
-{Promotional Campaigns Narrative} Estimate with 95% confidence the mean difference and interpret.

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.957 ± .57.Thus,LCL = .387,and...

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