Question: Math 240 Jump to level 1 A sales manager for a large department store believes that customer spending per visit with a sale is lower

Math 240

Jump to level 1 A sales manager for a large department store believes that customer spending per visit with a sale is lower 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 82.904 71.316 Variance 1984.96 1826.41 Observations 200 150 Hypothesized Mean Difference 0 df 328 t Stat -2 465 P(T

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