2.29 The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. The results are as Inspector Caliper 1 Caliper 2 0.265 0.265 follows: 0.264 0.265 1 2 0.264 0.266 3 0.266 0.267 0.267 0.267 0.268 0.264 0.265 0.265 0.267 0.268 0.269 0.265 0.267 0.267 6 0.265 0.268 10 11 0.268 12 0.265 a. Is there a significant difference between the means of the population of measurements from which the two samples were selected? Use a = 0.05. D. Find the P-value for the test in part (a).
2.29 The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. The results are as Inspector Caliper 1 Caliper 2 0.265 0.265 follows: 0.264 0.265 1 2 0.264 0.266 3 0.266 0.267 0.267 0.267 0.268 0.264 0.265 0.265 0.267 0.268 0.269 0.265 0.267 0.267 6 0.265 0.268 10 11 0.268 12 0.265 a. Is there a significant difference between the means of the population of measurements from which the two samples were selected? Use a = 0.05. D. Find the P-value for the test in part (a).
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter34: Customary Micrometers
Section: Chapter Questions
Problem 58A
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Transcribed Image Text:2.29 The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. The results are as
Inspector Caliper 1 Caliper 2
0.265
follows:
1
0.264
2
0.265
0.265
3
0.266
0.264
0.267
0.266
0.267
0.267
0.268
0.265
0.267
0.267
0.265
0.268
0.268
6
0.264
0.265
0.265
0.267
7
8
9
10
11
0.268
12
0.265
0.269
a. Is there a significant difference between the means of the population of measurements from which the two samples were
selected? Use a = 0.05.
b. Find the P-value for the test in part (a).
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