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StatisticsQ&A LibraryShorney construction company bids on projects assuming that the mean idle time perworker is 72 or fewer minutes per day. a sample of 30 construction workers will be usedto test this assumption. assume that the population standard deviation is 20 minutes.a. State the hypotheses to be tested.b. what is the probability of making a type ii error when the population mean idle timeis 80 minutes?c. what is the probability of making a type ii error when the population mean idle timeis 75 minutes?d. what is the probability of making a type ii error when the population mean idle timeis 70 minutes?e. Sketch the power curve for this problemStart your trial now! First week only $4.99!*arrow_forward*

Question

Shorney construction company bids on projects assuming that the mean idle time per

worker is 72 or fewer minutes per day. a sample of 30 construction workers will be used

to test this assumption. assume that the population standard deviation is 20 minutes.

a. State the hypotheses to be tested.

b. what is the probability of making a type ii error when the population mean idle time

is 80 minutes?

c. what is the probability of making a type ii error when the population mean idle time

is 75 minutes?

d. what is the probability of making a type ii error when the population mean idle time

is 70 minutes?

e. Sketch the power curve for this problem

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