A professor was interested in determining whether the prices of new textbooks in the bookstore were higher than if purchased online. She selected six textbooks and priced each at the bookstore and online. Paired T for Bookstore-Online N Mean StDev SE Mean Bookstore 6 115.00 22.36 9.13 Online 6 105.83 13.20 5.39 Difference 6 9.17 13.20 5.39 95% lower bound for mean difference:minus−1.69 T-Test of mean differenceequals=0 (vs > 0): T-Valueequals=1.70 P-Valueequals=0.075 Based on her analysis, we can conclude at the 0.05 level of significance thata. 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.