In: Statistics and Probability
20: Assume that matched pairs of data result in the given number of signs when the value of the second variable is subtracted from the corresponding value of the first variable. There are 8 positive signs (+), 7 negative signs (−), and 2 ties (zeros). Using the sign test with ? = 0.05 significance level, state the test statistic, the critical value, and whether or not you would reject the null hypothesis of no difference in the variables. Test statistic = ____ ; Critical Value = _____ ; Reject or Fail to Reject Null Hypothesis?