A Marketing Firm Asked a Random Set of Married Women

Multiple Choice

A marketing firm asked a random set of married women and married men how much they were willing to spend for jewellery as a present for their spouse.Can the firm conclude, at , that
Each of the two groups has a different willingness to spend? (Use the unequal variances formula.)

A) No, because the test value 0.32 is inside the interval (-2.31, 2.31)
B) Yes, because the test value 2.81 is outside the interval (-2.36, 2.36)
C) Yes, because the test value 16.00 is inside the interval (-2.31, 2.31)
D) No, because the test value 16.00 is outside the interval (-2.36, 2.36)