In a test of physical fitness, a fitness trainer for a group of men ages 65 and older from a local retirement community told a sample of 16 men to do as many sit-ups as they could. It is known the...

In a test of physical fitness, a fitness trainer for a group of men ages 65 and older from a local retirement community told a sample of 16 men to do as many sit-ups as they could.  It is known the population mean for sit-ups in this age range is 20.  The average sit-ups for this sample is 24.5 and the sample standard deviation is 7.916.  Complete the steps to make a 95% conclusion and calculate the confidence interval/effect size as appropriate.  What kind of test is appropriate for this question? This is a one-tailed test? True or false.

H₀:  µ_________20 H_A:µ_________20 . Use your table to find the correct critical value ________________. Enter just the numerical part of the obtained value for this sample.