12.43 Refer to Exercise 12.31. a Use a 99% confidence interval to estimate the difference between the
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12.43 Refer to Exercise 12.31.
a Use a 99% confidence interval to estimate the difference between the mean delivery times for carriers I and II.
b What assumptions are necessary for the validity of the procedures you used in part (a)?
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Related Book For
Probability And Statistics For Engineers
ISBN: 9781133006909
5th Edition
Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr
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