EXAMPLE 35 Power of a hypothesis test
Calculate the power, for the particular alternative value of the mean, of the hypothesis test in Example 34.
Solution
The probability of a Type II error was found in Example 34 to be β=0.0475. Thus, the power of the hypothesis test is
power =1-β=1-0.0475=0.9525
The probability of correctly rejecting the null hypothesis is 0.9525.
NOW YOU CAN DO
Exercises 17–28.