A Professor Was Interested in Determining Whether the Prices of New

Multiple Choice

A professor was interested in determining whether the prices of new textbooks in
The bookstore were higher than if purchased online. She selected 6 textbooks and priced
Each at the bookstore and online.
Paired T-Test and CI: Bookstore, Online Paired $\mathrm{T}$ for Bookstore - online

$\begin{array}{lrrrr} & \text { N } & \text { Mean } & \text { StDev } & \text { SE Mean } \\ \text { Bookstore } & 6 & 115.00 & 22.36 & 9.13 \\ \text { Online } & 6 & 105.83 & 13.20 & 5.39 \\ \text { Difference } & 6 & 9.17 & 13.20 & 5.39\end{array}$

95\% lower bound for mean difference: -1.69
T-Test of mean difference $=0(\mathrm{vs}>0) : \mathrm{T}$ -Value $=1.70 \quad$ P-Value $=0.075$

Based on her analysis, we can conclude at the .05 level of significance that

A) The prices are the same in the bookstore and online.
B) The prices are higher in the bookstore.
C) The prices are higher online.
D) The prices are different in the bookstore and online.
E) The analysis is not conclusive.