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.

Samples from without sale: n1=?

Samples from with sale: n2=?

Point estimate for spending without sale: =?

Point estimate for spending with sale: =?

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