a) Provide a 95% two-sided confidence interval on the mean gain-loss time. Provide an interpretation on your result.b) Is it reasonable to conclude that the mean gain or loss time for the watches is 0? Why? Problem 6A watch corporation claims that its watches on average will neither gain nor lose time during aweek. A sample of 18 watches provided the following gains (+) or losses (-) in seconds per week.-0.38-0.20+0.25-0.32-0.37-0.47-0.22+0.32-0.23-0.48-0.03-0.10+0.07+0.30-0.61-0.68-0.64+0.05

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a) Provide a 95% two-sided confidence interval on the mean gain-loss time. Provide an interpretation on your result. b) Is it reasonable to conclude that the mean gain or loss time for the watches is 0? Why?

a) Provide a 95% two-sided confidence interval on the mean gain-loss time. Provide an interpretation on your result. b) Is it reasonable to conclude that the mean gain or loss time for the watches is 0? Why?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

a) Provide a 95% two-sided confidence interval on the mean gain-loss time. Provide an interpretation on your result.

b) Is it reasonable to conclude that the mean gain or loss time for the watches is 0? Why?

Problem 6
A watch corporation claims that its watches on average will neither gain nor lose time during a
week. A sample of 18 watches provided the following gains (+) or losses (-) in seconds per week.
-0.38
-0.20
+0.25
-0.32
-0.37
-0.47
-0.22
+0.32
-0.23
-0.48
-0.03
-0.10
+0.07
+0.30
-0.61
-0.68
-0.64
+0.05

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