MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question

10.4.3

The true average diameter of ball bearings of a certain type is supposed to be 0.5 inch. What conclusion is appropriate when testing Ho: μ = 0.5 versus Ha: 0.5 inch in each of the following situations? (a) = n = 12, t 1.8, α = 0.05 Reject Ho Fail to reject Ho (b) (c) (d) n = 12, t = -1.8, α = 0.05 Reject Ho Fail to reject Ho 26, t -2.6, a = 0.01 Reject Ho Fail to reject Ho n = 26, t = -3.6 Reject Ho at any reasonable significance level Fail to reject Ho at any reasonable significance level
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Transcribed Image Text:The true average diameter of ball bearings of a certain type is supposed to be 0.5 inch. What conclusion is appropriate when testing Ho: μ = 0.5 versus Ha: 0.5 inch in each of the following situations? (a) = n = 12, t 1.8, α = 0.05 Reject Ho Fail to reject Ho (b) (c) (d) n = 12, t = -1.8, α = 0.05 Reject Ho Fail to reject Ho 26, t -2.6, a = 0.01 Reject Ho Fail to reject Ho n = 26, t = -3.6 Reject Ho at any reasonable significance level Fail to reject Ho at any reasonable significance level
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