7. A national agency sets recommended daily dietary allowances for zinc for males over the age of 50 years as 15 mg/day. The agency would like to determine if the dietary intake of zinc for active males is significantly higher than 15 mg/day. How many males would need to be included in the study if the agency wants to construct an = .05 test with the probability of committing a Type II error to be at most .10 whenever the average zinc content is 15.2 mg/day or higher? Suppose from previous studies they estimate the standard deviation to be approximately 5 mg/day. n =

8. What is the relationship between the significance level and a type one error? The significance level is the probability of not committing a type one error.

The significance level is the probability of committing a type one error.

One minus the significance level is the probability of committing a type one error.

The significance level measures the amount of type one error.