A voter wants to know how much time governors spend on golf courses per year. He finds data on 12 governors. The sample average is 48 days with standard deviation 10 days. Assume the population amount of time is not normally distributed.
Which of the following the critical value if he wants to build a range that is 90% likely to contain the true population average?
Group of answer choices
A.=T.INV((1-0.90)/2, 0, 1)
B. =T.INV((1-0.90)/2, 12)
C.=T.INV((1-0.90)/2, 48, 10/SQRT(12))
D.= T.INV((1-0.90)/2, 11)
E.=NORM.INV((1-0.90)/2, 0, 1)