**Question: **You are going to meet with a potential new client and help them set up a test to detect when a process goes out of control. Discuss the issues that need to be considered in determining an appropriate significance level.

## Statistics: Hypothesis Testing – #29541

**Question: ** The manager of the Tee Shirt Emporium reports that the mean number of shirts sold per week is 1,210 with a standard deviation of 325. The distribution of sales follows the normal distribution. What is the likelihood of selecting a sample of 25 weeks and finding the sample mean to be 1,100 or less?

**Question: ** The manager of the Tee Shirt Emporium reports that the mean number of shirts sold per week is 1,210 with a standard deviation of 325. The distribution of sales follows the normal distribution. What is the likelihood of selecting a sample of 25 weeks and finding the sample mean to be 1,100 or less?