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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 120 times)

erikka246

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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 value of the test statistic is


250


8000


8250


2.0



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Marked as best answer by erikka246 on Mar 25, 2023

Jim457

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erikka246

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Reply 2 on: Mar 25, 2023
Thanks for the timely response, appreciate it


Chelseyj.hasty

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Reply 3 on: Yesterday
Wow, this really help

 

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