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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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?
Transcribed Image Text: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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