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Author Question: Exhibit 9-9The sales of a grocery store had an average of $8,000 per day. The store introduced ... (Read 43 times)

hannahmadyronde

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on: Mar 25, 2023

Exhibit 9-9
The sales of a grocery store had an average of $8,000 per day.  The store introduced several advertising campaigns in order to increase sales.  To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 64 days of sales was selected.  It was found that the average was $8,300 per day.  From past information, it is known that the standard deviation of the population is $1,200.


Refer to Exhibit 9-9.  The correct null hypothesis for this problem is


◦

μ< 8000


◦

μ> 8000


◦

μ = 8000


◦

μ > 8250

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by hannahmadyronde on Mar 25, 2023

hariet5

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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hannahmadyronde

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

Liddy

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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