A study of the ages of motorcyclists killed in crashes involves the random selection of 131 drivers with a mean of 35.73 years. Assuming that o = 8.3 years, construct and interpret a 95% confidence interval estimate of the mean age of all motorcyclists killed in crashes. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. . . . . . What is the 95% confidence interval for the population mean ?