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A manufacturer considers his production process to be out of control when defects exceed 3%. In...

A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 85 items, the defect rate is 5.9% but the manager claims that this is only a sample fluctuation and production is not really out of control. At the 0.01 level of significance, test the manager's claim.

what type of hypothesis test is this?

a. test about the mean when sigma is known

b. one sample proportion test

c. independent two sample t test

d. tests about the mean when sigma is unknown

Math   Statistics-And-Probability   
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Answer #1

b) one sample proportinality test

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