Question 2 a) A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a new prescription painkiller. A random sample of 16...

Extracted text: Question 2 a) A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a new prescription painkiller. A random sample of 16 patients had a sample mean of 10 minutes with a sample standard deviation of 2 minutes. Find the 98% confidence interval for the time until headache relief. Enter the lower endpoint of the interval in the first blank and the upper endpoint in the second blank. Do not round your answer or intermediate steps. You must use critical values from the tables