Question 23:- If the sample size in the above problem had been only 20 instead of 36, then we would use a) Z test b) t- test c) either (a) or (b) d) F - test Question 24:- The calculated value of the test statistic for the above problem would have been a) 2 b) minus 2 () 0.33 d) minus 0.33 Question 25:- For a type I error of 5% we would accept or reject the null hypothesis based on obtained ( table value =1.645) a) accept null hypothesis b) reject null hypothesis C) cannot conclude d) test is wrong