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The results of a statistical analysis using the t-test for paired two-samples to compare the means of two related samples. The analysis involves calculating various statistics such as mean, variance, observations, pearson correlation, t-statistic, and critical values. Based on the calculated t-statistic and critical values, the null hypothesis of no difference between the before and after results is accepted.
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19 41 t-Test: Paired Two Sample for Means 54 117 123 30 X Y 49 114 Mean 72.9 71. 38 47 Variance 1312.544 1447. 121 71 Observations 10 10 86 38 Pearson Correlation 0. 109 125 Hypothesized Mean Dif 0 78 94 df 9 52 34 t Stat 0. P(T<=t) one-tail 0. t Critical one-tail 1. P(T<=t) two-tail 0. t Critical two-tail 2. SINCE ABSOLUTE VALUE OF T = 1.83 IS GREATER THAN ABSOLUTE VALUE OF COMPUTED T = 0.11, THEREFORE ACCEPT THE THE NULL HYPOTHESIS, THAT THERE IS NO DIFFERENCE BETWEEN THE BEFORE AND AFTER RESUL