What is your conclusion?

\fUse Excel to test. For each paired difference, compute After - Before. In Data Analysis, t-Test: Paired Two Sample for means, select the After data for Variable 1 Range. Note that the critical value output by Data Analysis for this test is always positive. In this problem, the sign of the critical value is negative corresponding to a 1-tailed test with lower reject region and negative lower critical value. What is your conclusion? Do not reject the NULL Hypothesis because the actual value is less than the critical value Do not reject the NULL Hypothesis because the actual value is greater than critical value Reject the NULL Hypothesis because the actual value is less than the critical value Reject the NULL Hypothesis because the actual value is greater than critical value