A fry cook at wing restaurant says he can fry at least 150 wings in an hour. The manager then conducted a study with 10 coworkers. After analyzing the manger concluded an average that a fry cook can fry at least 145 wings in an hour, and a standard deviation of 5.5. At a significance level, alpha = .05. Does the evidence show that the fry cooks make more than 150 wings in an hour?

1) Write the hypothesis:

Ho: 150

Ha: > 150

2) Calculate the test statistics, z

= (145-150)/(5.5/sqrt(10))

3) Find the p-value

4) Make a decision regarding the null hypothesis, Ho. Either "reject Ho," or "fail to reject Ho" with alpha = 0.05

5) State the conclusion