Part 1: Seven-Step Process for the Two-Tailed Test of Independent Samples Step 1: Set your hypothesis. Ho: (in statistical form) Ha: (in statistical form)

TABLE 3-Percentage Points of Student's t Distribution Level of Significance for a One-Tailed Test Degrees of .25 .20 .15 .10 .05 .025 -01 005 _0005 Freedom (n-1) Level of Significance for a Two-Tailed Test 50 .40 .30 20 10 05 .02 101 .001 1.000 1.376 1.963 3.078 6.314 12.706 31.821 63.657 636.619 .816 1.061 1.386 1.886 2.920 4.303 6.965 9.925 31.598 765 .978 1.250 1.638 2.353 3.182 4.541 5.841 12.924 741 .941 1.190 1.533 2.132 2.776 3.747 4.604 8.610 .727 920 1.156 1.476 2.015 2.571 3.365 4.032 6.869 718 906 1.134 1.440 1.943 2.447 3.143 3.707 5.959 711 896 1.119 1.415 1.895 2.365 2.998 3.499 5.408 706 .889 1.108 1.397 1.860 2.306 2.896 3.355 5.041 703 883 1.100 1.383 1.833 2.262 2.821 3.250 4.781 700 .879 1.093 1.372 1.812 2.228 2.764 3.169 4.587 697 .876 1.088 1.363 1.796 2.201 2.718 3.106 4.437 695 .873 1.083 1.356 1.782 2.179 2.681 3.055 4.318 694 .870 1.079 1.350 1.771 2.160 2.650 3.012 4.221 692 .868 1.076 1.345 1.761 2.145 2.624 2.977 4.140 691 .866 1.074 1.341 1.753 2.131 2.602 2.947 4.073 690 865 1.071 1.337 1.746 2.120 2.583 2.921 4.015 689 863 1.069 1.333 1.740 2.110 2.567 2.898 3.965 688 862 1.067 1.330 1.734 2.101 2.552 2.878 3.922 688 .861 1.066 1.328 1.729 2.093 2.539 2.861 3.883 20 687 .860 1.064 1.325 1.725 2.086 2.528 2.845 3.850 21 686 .859 1.063 1.323 1.721 2.080 2.518 2.831 3.819 686 .858 1.061 1.321 1.717 2.074 2.508 2.819 3.792 685 .858 1.060 1.319 1.714 2.069 2.500 2.807 3.767 24 685 .857 1.059 1.318 1.711 2.064 2.492 2.797 3.745 25 684 .856 1.058 1.316 1.708 2.060 2.485 2.787 3.725 26 684 .856 1.058 1.315 1.706 2.056 2.479 2.779 3.70 27 684 855 1.057 1.314 1.703 2.052 2.473 2.771 3.690 28 683 .855 1.056 1.313 1.701 2.048 2.467 2.763 3.674 29 683 .854 1.055 1.311 1.699 2.045 2.462 2.756 3.659 30 683 854 1.055 1.310 1.697 2.042 2.457 2.750 3.646 40 681 851 1.050 1.303 1.684 2.021 2.423 2.704 3.551 60 .679 .848 1.046 1.296 1.671 2.000 2.390 2.660 3.460 120 677 .845 1.041 1.289 1.658 1.980 2.358 2.617 3.373 674 .842 1.036 1.282 1.645 1.960 2.326 2.576 3.291RES6023: Quantitative Research Designs AMERICAN COLLEGE EDUCATION' Data Set Pocket Student Ht Wt Age [Yrs) Shoe Size Waist Size Change 01 64 180 39 07 36 018 02 66 140 31 09 30 125 03 69 130 31 09 25 151 04 63 125 36 07 25 011 05 68 155 24 08 31 151 06 62 129 42 06 32 214 07 63 173 30 08 34 138 60 102 26 25 067 08 06 09 66 180 33 08 30 285 10 66 130 31 09 30 050 11 63 125 32 08 26 032 12 68 145 33 10 28 118 13 75 235 44 12 40 060 14 68 138 43 08 27 050 15 65 165 55 09 30 022 64 140 24 07 31 095 16 17 78 240 40 09 38 109 18 71 163 28 07 32 014 19 68 195 24 10 36 005 20 66 122 33 09 26 170 21 115 25 07 25 136 22 71 210 30 10 36 050 23 78 108 23 07 22 075 24 69 126 23 08 24 175 25 77 215 24 12 36 041 26 68 125 23 08 30 036 27 62 105 50 06 24 235 28 69 126 42 09 27 130 29 55 140 42 08 29 014 30 67 145 30 08 30 050 2014 Donald F. DeMoulin