A professor was interested in determining whether the prices of new textbooks in

Question

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 T for Bookstore - Online

95% lower bound for mean difference: -1.69

T-Test of mean difference = 0 (vs > 0): T-Value = 1.70 P-Value = 0.075

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

Select one:

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.

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

Explanation / Answer

we have a p-value of 0.075 that is greater than 0.05

so

a. The prices are the same in the bookstore and online.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.