Prototype electric cars are randomly assigned to one of two charging regimens. Over the course of a
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Prototype electric cars are randomly assigned to one of two charging regimens.
Over the course of a three-month test period, engineers record the number of times the car was driven and the number of times it had a charging malfunction.
The data is shown in Table 13.12.
(a) Do the two regimens differ in the expected number of malfunctions per drive?
(b) Why should the p values from the usual test statistics be regarded as approximate?
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Statistical Methods
ISBN: 9780128230435
4th Edition
Authors: Donna L. Mohr, William J. Wilson, Rudolf J. Freund
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