QUESTION 7 A distribution that is skewed to the left has a mean greater than the median. True False QUESTION 8 What is the critical value z (you may use the normal on statkey to answer this question), used to conduct a 98% confidence interval estimate if the original sample size is 30? Round to 3 decimal places. QUESTION 9 The p-value for the following hypotheses is 0.028 Ho: H = 0.8 Ha: H # 0.8 Do you Reject or Fail to Reject