Historically, the average waiting time at a busy restaurant is 29 minutes with a standard deviation of 4 minutes. The owner wants to test if a new seating policy has decreased the mean waiting time. A random sample of 32 wait times is selected. A level of significance of 0.05 is chosen. What is a Type I Error in this problem?
Added by Barry B.
Step 1
- Null hypothesis \(H_0\): The mean waiting time has not decreased, i.e., \(\mu = 29\) minutes. - Alternative hypothesis \(H_a\): The mean waiting time has decreased, i.e., \(\mu < 29\) minutes. Show more…
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