Question

Assuming the degrees of freedom equals 24, select the t value from the t table.

Answer 1

Anson To find the t-value from t-table. Given degree of freedom = 24 Since the confidence interval is not given Assume it to be 98%. From interval t-table at and degree of 98% confidence freedom the t-value is 2.49 2 Scanned with CamScanner

t Table cum. prob one-tail) two-tails Iso 0.50 1.00 1.75 0.25 0.50 1.0 0.20 0.40 1.8 0.15 0.30 1.90 0.10 0.20 195 0.05 0.10 1975 0.025 0.05 . 0.01 0.02 .995 0.005 0.01 9 59 0.001 0.002 9 595 0.0005 0.001 636.62 coco UWN 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0% 1.000 1.376 0.816 1.061 0.765 0.978 0.741 0.941 0.727 0.920 0.718 0.906 0.7110.896 0.706 0.889 0.703 0.883 0.700 0.879 0.697 0.876 0.695 0.873 0.694 0.870 0.692 0.868 0.691 0.866 0.690 0.865 0.689 0.863 0.688 0.862 0.688 0.861 0.687 0.860 0.686 0.859 0.686 0.858 0.685 0.858 0.685 0.857 0.684 0.856 0.684 0.856 0.684 0.855 0.683 0.855 0.683 0.854 0.683 0.854 0.681 0.851 0.679 0.848 0.678 0.846 0.677 0.845 0.675 0.842 0.674 0.842 50% 60% 2 1.963 1.386 1.250 1.190 1.156 1.134 1.119 1.108 1.100 1.093 1.088 1.083 1.079 1.076 1.074 1.071 1.069 1.067 1.066 1.064 1.063 1.061 1.060 1.059 1.058 1.058 1.057 1.056 1.055 1.055 1.050 1.045 1.043 1.042 1.037 1.036 70% 3.078 6.314 12.71 1.886 2.920 4.303 1.638 2.353 3.182 1.533 2.132 2.776 1.476 2.015 2.571 1.440 1.943 2.447 1.415 1.895 2.365 1.397 1.860 2.306 1.383 1.833 2.262 1.372 1.812 2.228 1.363 1.796 2.201 1.356 1.782 2.179 1.350 1.771 2.160 1.345 1.761 2.145 1.341 1.753 2.131 1.337 1.746 2.120 1.333 1.740 2.110 1.330 1.734 2.101 1.328 1.729 2.093 1.325 1.725 2.086 1.323 1.721 2.080 1.321 1.717 2.074 1.319 1.714 2.06 1.318 1.711 2.06 1.316 1.708 2.08 1.315 1.706 2.056 1.314 1.703 2.052 1.313 1.701 2.048 1.311 1.699 2.045 1.310 1.697 2.042 1.303 1.684 2.021 1.296 1.671 2.000 1.292 1.664 1.990 1.290 1.660 1.984 1.282 1.646 1.962 1.282 1.645 1.960 80% 90% 95% Confidence Level 31.82 6.965 4.541 3.747 3.365 3.143 2.998 2.896 2.821 2.764 2.718 2.681 2.650 2.624 2.602 2.583 .567 2.552 2.539 2.528 2.518 2.508 63.66 9.925 5.841 4.604 4.032 3.707 3.499 3.355 3.250 3.169 3.106 3.055 3.012 2.977 2.947 2.921 2.898 2.878 2.861 2.845 2.831 2.819 307 318.31 22.327 10.215 7.173 5.893 5.208 4.785 4.501 4.297 4.144 4.025 3.930 3.852 3.787 3.733 3.686 3.646 3.610 3.579 3.552 3.527 3.505 3.485 3.467 3.450 3.435 3.421 3.408 3.396 3.385 3.307 3.232 3.195 3.174 3.098 3.090 99.8% 12.924 8.610 6.869 5.959 5.408 5.041 4.781 4.587 4.437 4.318 4.221 4.140 4.073 4.015 3.965 3.922 3.883 3.850 3.819 3.792 3.768 3.745 3.725 3.707 3.690 3.674 3.659 3.646 3.551 3.460 3.416 3.390 3.300 3.291 99.9% 2.492 197 2.479 2.473 2.467 2.462 2.457 2.423 2.390 2.374 .364 2.330 2.326 98% 187 2.779 2.771 2.763 2.756 2.750 2.704 2.660 2.639 2.626 2.581 2.576 99% 2 1001 1000 Z

Thus t value is 2.492