Multiple Choice
A grocery store has an average sales of $8000 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 $8300 per day.From past information, it is known that the standard deviation of the population is $1200.The value of the test statistic is
A) .25.
B) 80.00.
C) 8.25.
D) 2.00.
Correct Answer:
Verified
Correct Answer:
Verified
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