Question
1.A university bookstore realizes that they are losing business, because more students are choosing to buy there textbooks online. The bookstore wants to run an
1.A university bookstore realizes that they are losing business, because more students are choosing to buy there textbooks online. The bookstore wants to run an advertising campaign that claims that new textbooks purchased at the bookstore are cheaper than purchasing a new textbook online and paying for the book and shipping.
Before running this advertising campaign, they want to test this claim to confirm that the bookstore prices really are lower. They randomly sample 10 new textbooks and look up the price to order that same book online and have it shipped to them. To results were as follows:
Textbook
1
2
3
4
5
6
7
8
9
10
Bookstore Price
108
114
115
90
118
130
119
115
75
114
Online
Price
124
120
105
95
115
130
117
125
90
115
Differences
Use = 0.10 as the significance level for this test.
A.Are these samples independent or dependent of each other? ________________________
B.Write out the hypotheses for this test.
H0:
HA:
C.Find the test statistic and p-value for this test. Show which calculator function you are using.
D.Using either the p-value or the test statistic what is our decision about the H0.
E.What conclusion did you come to in context to this test?
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