In the study it was found that the average age of cable TV shoppers was 56 years. Assume you want to test the null hypotheses Ho: Mu =56 using sample of n=80 cable TV shoppers.
A) Determine the p-value of a two-tailed test of if x=57.2 and s=6.5
B) find the p-value of an upper-tailed test if x=57.2 and s=6.5
Round four decimal places
A) P= ?
B) P=?