8. a wine merchant wants to determine if the average price of imported wine is less than the average price of domestic wine. the data are listed below: imported wine domestic wine y¯ 7.12 9.92 s 2.26 3.54 n 14 15 if α = 0.05, what type of hypothesis testing should be used? (a) testing the difference in the mean between two independent samples using a z-test (b) testing the difference in the mean between two independent samples assuming σ1 6= σ2 (c) testing the difference in the mean between two independent samples assuming σ1 = σ2 (d) testing the difference in the mean between paired samplesif α=0.05, what is the p-value?