To compare two kinds of bumper guards, six of each kind were mounted on a certain make of compact car. Then each car was run into a concrete wall at 5 miles per hour, and the following are the costs of the repairs (in dollars): Bumper guard 1: 127 168 143 165 122 139 Bumper guard 2 : 154 135 132 171 153 149. Test, at the α=:01 significance level, whether there is a difference between the mean cost of repairs between the two bumpers.
To compare two kinds of bumper guards, six of each kind were mounted on a certain make of compact car. Then each car was run into a concrete wall at 5 miles per hour, and the following are the costs of the repairs (in dollars): Bumper guard 1: 127 168 143 165 122 139 Bumper guard 2 : 154 135 132 171 153 149. Test, at the α=:01 significance level, whether there is a difference between the mean cost of repairs between the two bumpers.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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To compare two kinds of bumper guards, six of each kind were mounted on a certain make of compact car. Then each car was run into a concrete wall at 5 miles per hour, and the following are the costs of the repairs (in dollars):
Bumper guard 1: 127 168 143 165 122 139
Bumper guard 2 : 154 135 132 171 153 149.
Test, at the α=:01 significance level, whether there is a difference between the mean cost of repairs between the two bumpers.
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