If, in a sample of n= 16 selected from a normal population, x(bar) = 56 and s=12.

A) what is th value of tSTAT if you are testing the null hypothesis Ho: u=50?

B) how many degrees of freedom does the t test have?

C) what are the critical values of t if the level of significance, a, is 0.05, and the alternative hypothesis, H1, is u not = 50?

D) what is your statistical decision if the alternative hypothesis, H1, is u not = 50?

E) what type of error do you take the risk of making with this decision?