A Student Is Trying to Decide If It Is Cheaper

Multiple Choice

A student is trying to decide if it is cheaper to order blank CDs over the Internet or to buy them at local electronics stores.Listed below are the prices (in dollars) quoted for boxes of 200 blank CDs from various manufacturers. $$\begin{array} { c c } \ \text { Internet } & \text { Local Electronics Stores } \\26.00& 33.98 \\27.99& 37.75 \\31.50 & 38.99 \\32.75 & 35.79 \\27.00 & 33.99 \\27.98 & 34.79 \\24.75 & 29.98 \\28.15& 33.00 \\29.99 & 32.00\\29.99\end{array}$$
Set up the alternative hypothesis for the claim that buying over the Internet (I) is cheaper than buying from the local electronics stores (E) .

A) H_A: D_I is shifted to the right of D_E.
B) H_A: D_I is shifted to the left or right of D_E.
C) H_A: D_I is shifted to the left of D_E.
D) H_A: D_I is identical to D_E.