The NCAA reported that the mean number of hours spent per week on coaching and recruiting by college football assistant coaches during the season is 70. A random sample of 50 assistant coaches showed the sample mean to be 68.6 hours, with a standard deviation of 8.2 hours.
b. Does the 99 percent confidence interval include the alue suggested by the NCAA? Interpret this result.
c. Suppose you decided to switch from a 99 to a 95 percent confidence interval. Without performing any calculations, will the interval increase, decrease, or stay the same? Which of the values in the formula will change?© BrainMass Inc. brainmass.com June 3, 2020, 5:10 pm ad1c9bdddf
This solution contains a detailed explanation of computing a confidence interval for a population parameter.