Suppose that a doctor claims that those who are 17 years old have an average body temperature that is higher than the commonly accepted average human temperature of 98.6 degrees Fahrenheit. A sample of 31 people is selected. The average temperature of the sample is found to be 98.9 degrees. Further, suppose that we know that the population standard deviation of everyone who is 17 years old is 0.6 degrees.

Step 1. State H0 and H1 including the symbolic forms.

Step 2. Choose a level of significance

Step 3. Compute the value of test statistic

Step 4. Compute the p-value

Step 5. Interpret the p-value

Step 6. Your final conclusion.