Statistics Solutions

(Solution Library) The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. The results were Inspector Caliper

Question: The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. The results were

Inspector Caliper 1 Caliper 2
1 0.265 0.264
2 0.265 0.265
3 0.266 0.264
4 0.267 0.266
5 0.267 0.267
6 0.265 0.268
7 0.267 0.264
8 0.267 0.265
9 0.265 0.265
10 0.268 0.267
11 0.268 0.268
12 0.265 0.269
  1. Is there a significant difference between the means of the population of measurements from which the two samples were selected? Use \(\alpha=0.05\)
  2. Find the \(P\) -value for the test in part (a).
  3. Construct a 95 percent confidence interval on the difference in mean diameter measurements for the two types of calipers.

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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