What is the criterion referred to as the "significance level" used for? Question 77 options: a) Proving the null hypothesis b) Rejecting the alternative hypothesis c) Accepting the null hypothesis d) Rejecting the null hypothesisWhat is the range of correlation coefficients? Question 80 options: a) 0 to 10 b) -0 to +100 c) -1 to +1 d) 0 to 100%