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A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are
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A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomly selected, find the probability that their mean rebuild time exceeds 8.7 hours.

Group of answer choices

A. 0.1946
B. 0.1285
C. 0.1469
D. 0.1346

User Jurgen Vinju
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8.2k points

1 Answer

1 vote

Answer:

b. 01285 esa es, espero este buena y que te ayude

User Ayush Bansal
by
8.1k points
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