1. Many students have had the unpleasant experience of panicking on a test because the 1st question was exceptionally difficult. The arrangement of the rest of test items was studied for its effect on anxiety. The following scores are measures of "debilitating test anxiety." At the 0.05 significance level, test the claim that arranging the test questions from Difficult to Easy raises the debilitating test anxiety measure versus when the test questions are arranged from Easy to Difficult. The data is shown below:

Easy to Difficult Difficult to Easy 24.64 33.62 28.02 35.91 26.69 27.24 7.1 27.62 28.71 34.02 24.49 26.68 30.72 32.34 39.29 42.91 33.31 26.63 28.9 29.49 32.86 29.34 Easy to Difficult Difficult to Easy 31.73 30.2 38.81 30.26 Mean 27.0752 Mean 31.72813 16.32 35.32 Standard Error 1.373976 Standard Error 1.065038 20.6 33.53 Median 28.02 Median 31.3 26.43 32.54 Mode #N/A Mode #N/A 21.06 Standard Deviation 6.869881 Standard Deviation 4.260152 30.02 Sample Variance 47.19527 Sample Variance 18.1489 27.85 Kurtosis 1.956773 Kurtosis 1.808746 32.83 Skewness -0.81184 Skewness 1.074676 21.13 Range 32.19 Range 16.28 24.23 Minimum 7.1 Minimum 26.63 28.89 Maximum 39.29 Maximum 42.91 21.96 Sum 676.88 Sum 507.65 30.29 Count 25 Count 16t-Test: Two-Sample Assuming Unequal Variances Easy to Difficult |Difficult to Easy Mean 27.0752 31.728125 Variance 47.19526767 18.14889625 Observations 25 16 Hypothesized Mean Difference 0 t Stat -2.676519645