8.48 Nonconforming switches?

Refer to Exercises 8.22 and 8.23, where you found a confidence interval and performed a significance test for nonconforming switches. Find the sample size needed for testing the null hypothesis that the population proportion is 0.08 versus the one-sided alternative that the population proportion is greater than 0.08. Use , 80% power, and 0.20 as the alternative for your calculations.