You wish to test the following claim {Hg} at a significance level of C! = 0.002. For the context of this problem, Jud = #9 #1 where the first data set represents a pre-test and the second data set represents a post-test. H0:pd:0 Hailing *5; l] 'I'OL believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: pre-test post-test 45.9 -11.5 49.1 22.5 50.2 30.6 51.2 32.6 49.? 11 62.3 40.8 53.1 41.5 44.6 9.1 What is the critical value for this test? (Report answer accurate to three decimal places.} critical value = What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = The test statistic is... '73 in the critical region '73 not in the critical region This test statistic leads to a decision to... if} reject the null if? accept the null if} fail to reject the null