A student is trying to decide if it is cheaper to order blank CDs over the internet or to buy them at local electronic stores.Listed below are the prices (in dollars)quoted for boxes of 200 blank CDs from various manufacturers. On the average,can it be concluded that Internet purchases are significantly less than electronics store purchases? Test at = .05
A)Reject the null hypothesis,Internet purchases are less than local stores
B)Fail to reject the null hypothesis,not enough evidence to show that Internet purchases are less than local stores

Question

A student is trying to decide if it is cheaper to order blank CDs over the internet or to buy them at local electronic stores.Listed below are the prices (in dollars)quoted for boxes of 200 blank CDs from various manufacturers.  On the average,can it be concluded that Internet purchases are significantly less than electronics store purchases? Test at  = .05
A)Reject the null hypothesis,Internet purchases are less than local stores 
B)Fail to reject the null hypothesis,not enough evidence to show that Internet purchases are less than local stores

Quizplus · Accepted Answer

Can reject H₀,so we have evidence that Internet purchases are significantly less than local electronics storesT = 190From the Wilcoxon Rank Sum table for n_I = 10 and n_E = 9,T_U = 111If T F1F1F1S1F1F1F10 T_U then reject null hypothesis 190 F1F1F1S1F1F1F10 111

A Student Is Trying to Decide If It Is Cheaper