Question: The average waiting time in a doctor's office varies. The standard deviation of waiting times in a doctor's office is 3.4 minutes. A random sample of 30 patients in the doctor's office has a standard deviation of waiting times of 4.1 minutes. One doctor believes the variance of waiting times is greater than originally thought.
1.What type of test should be used?
2. What is the test statistic?
3. What is the p-value?
4. What can you conclude at the 5% significance level