Probability of a type one error-z test statistic

Reference no: EM1321132

The annual turnover rate of the 200-count bottle of aspirin follows the normal distribution with a mean of 6.0 and a standard deviation of 0.50. (This indicates that the stock of asprin turns over on the pharmacy shelves an average of 6 times per year.) It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.

A. What is the probability of a type I error.

B. Give the formula for the test statistic.

Reference no: EM1321132

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