Mathematics, 21.03.2020 00:25 Dweath50

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.
1. The value of the test statistic is .
2. The p-value is (round to 4 decimal places):

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A grocery store has an average sales of $8000 per day. The store introduced several advertising camp...