Refer to problem 9 73 If you select a random sample of 25 tyres and are willing to have an a risk of committing a Type I error, calculate the power of the test and the probability of a Type II error () if the population mean life is actually a 38,400 km b 39,840 km c Compare the results in (a) and (b) of this problem and (a) and (b) of problem 9 73 What conclusion can you reach

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Question: Refer to problem 9.73. If you select a random sample of 25 tyres and are willing to have an a risk of committing a

Refer to problem 9.73. If you select a random sample of 25 tyres and are willing to have an a

risk of committing a Type I error, calculate the power of the test and the probability of a Type II error (β) if the population mean life is actually:

a. 38,400 km

b. 39,840 km

c. Compare the results in

(a) and

(b) of this problem and (a)

and

(b) of problem 9.73. What conclusion can you reach?

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