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The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the critical value (CV) for this problem (use 05 level of significance)? IQ: 95 100 105 110 115 100 105 110 105 105 O2.74 1.812 1.833 0.05 2.262 O2.228

The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the critical value (CV) for this problem (use 05 level of significance)? IQ: 95 100 105 110 115 100 105 110 105 105 O2.74 1.812 1.833 0.05 2.262 O2.228

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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What is the critical value?
se Dok eams The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the critical value (CV) for this problem (use 05 level of significance)? IQ: 95 100 105 110 115 100 105 110 105 105 O 2.74 1.812 O 1.833 0.05 2.262 2.228
Transcribed Image Text:se Dok eams The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the critical value (CV) for this problem (use 05 level of significance)? IQ: 95 100 105 110 115 100 105 110 105 105 O 2.74 1.812 O 1.833 0.05 2.262 2.228
6:31 Critical values of t for one-tailed tests Significance level (a) Degrees of freedom (df) 1 2 3 4 5 6 r 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 40 50 40 60 Caribhu 70 80 100 1000 Infinite .2 AA 1.376 1.061 0.978 0.941 0.920 0.906 0.896 0.889 0.883 0.879 0.876 0.873 0.870 0.868 0.866 0.865 0.863 0.862 0.861 0.860 0.859 0.858 0.858 0.857 0.856 0.856 0.855 0.855 0.854 0.854 0.851 0.849 0.848 0.847 0.846 0.845 0.842 0.842 .15 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 Related content 1.037 1.036 1 3.078 1.886 1.638 1.533 1.071 1.069 1.067 1.066 1.064 1.063 1.061 1.321 1.060 1.319 1.059 1.318 1.058 1.316 1.058 1.315 1.057 1.314 1.056 1.313 1.055 1.311 1.055 1.310 1.050 1.303 1.047 1.299 1.045 1.296 1.044 1.294 1.043 1.292 1.042 1.290 1.282 1.282 1.476 1.440 1.415 1.397 1.383 1.372 1.363 1.356 1.350 1.345 1.341 1.337 1.333 1.330 1.328 1.325 1.323 .05 6.314 2.920 2.353 2.132 2.015 1.943 1.895 1.860 1.833 1.812 1.796 1.782 1.771 1.761 1.753 1.746 1.740 1.734 1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.676 1.671 1.667 1.664 1.660 1.646 1.645 Scribbr .025 12.706 4.303 3.182 2.776 2.571 2.447 2.365 2.306 2.262 2.228 2.201 2.179 2.160 2.145 2.131 2.120 2.110 2.101 2.093 2.086 2.080 2.074 2.069 2.064 2.060 2.056 2.052 2.048 2.045 2.042 2.021 2.009 2.000 1.994 1.990 1.984 1.962 1.960 .01 31.821 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 2.567 2.552 2.539 2.528 2.518 2.508 2.500 2.492 2.485 2.479 2.473 2.467 2.462 2.457 2.423 2.403 2.390 2.381 2.374 2.364 2.330 2.326 one-tailed a two-tailed a 0.20 16 1.337 17 1.333 Q critical value tavle .005 8 63.657 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 2.807 2.797 2.787 2.779 2.771 2.763 2.756 2.750 2.704 2.678 2.660 2.648 2.639 2.626 2.581 2.576 624 .001 318.309 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 3.261 3.232 3.211 3.195 3.174 0.10 0.05 0.025 0.01 0.005 0.0005 0.10 0.05 0.02 0.01 0.001 2.120 2.583 2.921 4.015 1.746 1.740 2.110 2.567 2.096 3.965 3.098 3.090 ㅁ
Transcribed Image Text:6:31 Critical values of t for one-tailed tests Significance level (a) Degrees of freedom (df) 1 2 3 4 5 6 r 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 40 50 40 60 Caribhu 70 80 100 1000 Infinite .2 AA 1.376 1.061 0.978 0.941 0.920 0.906 0.896 0.889 0.883 0.879 0.876 0.873 0.870 0.868 0.866 0.865 0.863 0.862 0.861 0.860 0.859 0.858 0.858 0.857 0.856 0.856 0.855 0.855 0.854 0.854 0.851 0.849 0.848 0.847 0.846 0.845 0.842 0.842 .15 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 Related content 1.037 1.036 1 3.078 1.886 1.638 1.533 1.071 1.069 1.067 1.066 1.064 1.063 1.061 1.321 1.060 1.319 1.059 1.318 1.058 1.316 1.058 1.315 1.057 1.314 1.056 1.313 1.055 1.311 1.055 1.310 1.050 1.303 1.047 1.299 1.045 1.296 1.044 1.294 1.043 1.292 1.042 1.290 1.282 1.282 1.476 1.440 1.415 1.397 1.383 1.372 1.363 1.356 1.350 1.345 1.341 1.337 1.333 1.330 1.328 1.325 1.323 .05 6.314 2.920 2.353 2.132 2.015 1.943 1.895 1.860 1.833 1.812 1.796 1.782 1.771 1.761 1.753 1.746 1.740 1.734 1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.676 1.671 1.667 1.664 1.660 1.646 1.645 Scribbr .025 12.706 4.303 3.182 2.776 2.571 2.447 2.365 2.306 2.262 2.228 2.201 2.179 2.160 2.145 2.131 2.120 2.110 2.101 2.093 2.086 2.080 2.074 2.069 2.064 2.060 2.056 2.052 2.048 2.045 2.042 2.021 2.009 2.000 1.994 1.990 1.984 1.962 1.960 .01 31.821 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 2.567 2.552 2.539 2.528 2.518 2.508 2.500 2.492 2.485 2.479 2.473 2.467 2.462 2.457 2.423 2.403 2.390 2.381 2.374 2.364 2.330 2.326 one-tailed a two-tailed a 0.20 16 1.337 17 1.333 Q critical value tavle .005 8 63.657 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 2.807 2.797 2.787 2.779 2.771 2.763 2.756 2.750 2.704 2.678 2.660 2.648 2.639 2.626 2.581 2.576 624 .001 318.309 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 3.261 3.232 3.211 3.195 3.174 0.10 0.05 0.025 0.01 0.005 0.0005 0.10 0.05 0.02 0.01 0.001 2.120 2.583 2.921 4.015 1.746 1.740 2.110 2.567 2.096 3.965 3.098 3.090 ㅁ
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