Question: Math 240 Zybooks catalog Start A sales manager for a large department store believes that customer spending per visit with a sale is higher than

Math 240

Zybooks catalog Start A sales manager for a large department store believes that customer spending per visit with a sale is higher than customer spending without a sale, and would like to test that claim. A simple random sample of customer spending is taken from without a sale and with a sale. The results are shown below. Without sale With sale Mean 74.894 78.138 Variance 1951.47 1852.0102 Observations 200 300 Hypothesized Mean Difference df 419 t Stat 0.813 P(T

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