Suppose that a hypothesis test is to be carried out by

Reference no: EM13644370

A) How large a sample should be taken if the population mean is to be estimated with 95% confidence to within $66? The population has a standard deviation of $903 (round answer to nearest whole number)

B) Suppose that a hypothesis test is to be carried out by using ?=0.04. What is the probability of committing a type 1 error? (Give your answer correct to 2 decimal places)

Reference no: EM13644370

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