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) .

Question

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) .

Quizplus · Accepted Answer

The null hypothesis would be that there is no difference in the prices between buying over the Internet and buying from local electronics stores. The alternative hypothesis would be that buying over the Internet is cheaper, which means the prices for buying over the Internet would be shifted to the left of the prices for buying from local electronics stores. Therefore, choice C is the best option.

A Student Is Trying to Decide If It Is Cheaper