You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly different from 0.22. You use a significance level of α=0.02α=0.02.       H0:p=0.22H0:p=0.22       HA:p≠0.22HA:p≠0.22 You obtain a sample of size n=521n=521 in which there are 87 successes.

A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, µ, of foodservice workers in the U.S. Last year's mean hourly wage was $8.16, and there is good reason to believe that this year's value is greater than last year's. The union decides to do a statistical test to see if the value has indeed increased. The union chooses a random sample of this year's wages, computes the mean of the sample to be $8.46, and computes the standard deviation of the sample to be $1.15. Based on this information, complete the parts below. (a) What are the null hypothesis H. and the alternative hypothesis H, that should be used for the test? Ho OSO O