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What are the null and altemative hypotheses? Pno carper versus H, Ppe Caloulate the test statistic, 6-O Round to beo decimal places as needed) Now fnd he crtical value. Select the comect choice below and filin the answer box within your choice. (Round to three decimal places as needed) Do carpeted rooms have more bacteria than uncarpeted rooms at the a001 level of significance? OA Yes, because the lest statistic is not in the ortical region. OB. No, because the test statistic isin the oritical region OC. No, because the lest statisticis not in the ortical region OD. Yes, because the test statistic is in the critical region.

What are the null and altemative hypotheses? Pno carper versus H, Ppe Caloulate the test statistic, 6-O Round to beo decimal places as needed) Now fnd he crtical value. Select the comect choice below and filin the answer box within your choice. (Round to three decimal places as needed) Do carpeted rooms have more bacteria than uncarpeted rooms at the a001 level of significance? OA Yes, because the lest statistic is not in the ortical region. OB. No, because the test statistic isin the oritical region OC. No, because the lest statisticis not in the ortical region OD. Yes, because the test statistic is in the critical region.

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 are the null and altemative hypotheses? Họ: Pcarpet Pno carpet versus H, Pcarpet Pno carpet Calculate the test statistic, ty- 6-O (Round to two decimal places as needed.) Now find the critical value. Select the correct choice below and fil in the answer box within your choloe. (Round to three decimal places as needed.) Do carpeted rooms have more bacteria than uncarpeted rooms at the a0.01 level of significance? OA. Yes, because the test statistic is not in the oritical region. OB. No, because the test statistic is in the critical region. OC. No, because the test statistic is not in the critical region. OD. Yes, because the tost statistic is in the critical region.
Transcribed Image Text:What are the null and altemative hypotheses? Họ: Pcarpet Pno carpet versus H, Pcarpet Pno carpet Calculate the test statistic, ty- 6-O (Round to two decimal places as needed.) Now find the critical value. Select the correct choice below and fil in the answer box within your choloe. (Round to three decimal places as needed.) Do carpeted rooms have more bacteria than uncarpeted rooms at the a0.01 level of significance? OA. Yes, because the test statistic is not in the oritical region. OB. No, because the test statistic is in the critical region. OC. No, because the test statistic is not in the critical region. OD. Yes, because the tost statistic is in the critical region.
A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed with no outliers. Do carpeted rooms have more bacteria than uncarpeted rooms at the a = 0.01 level of significance? Full data set O Carpeted 14.3 9.8 10.7 12.2 Uncarpeted 9.5 9.5 10.9 2.1 15 3 15.8 5.4 6.4 15.2 4.3 10.6 - X Student t-distribution Area in right tail t-Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 1.000 0.816 0.765 0.741 1.376 1.061 0.978 0.941 0.920 1.963 1.386 1.250 1.190 1.156 3.078 1.886 1.638 1.533 6.314 2.920 2.353 2.132 12.706 4.303 3.182 2.776 2.571 15.894 4.849 3.482 2.999 2.757 31.821 6.965 4.541 3.747 3.365 63.657 9.925 5.841 4.604 4.032 127.32 1 14.089 7453 5.598 318.309 636.619 31.599 12.924 8.610 6.869 22.327 10.215 3. 7173 5.893 5 0.727 1.476 2.015 4.773 1.943 1.895 1.860 1.833 1.812 2.612 4.317 5.959 6 7 8 0.718 0.711 0.706 0.703 0.700 0.906 0.896 0.889 0.883 0.879 1.134 1.119 1.108 1.100 1.093 1.440 1.415 1.397 1.383 2.447 2.365 2.306 2.262 2.228 2.517 2.449 2.398 2.359 3.143 2.998 2.896 2.821 2.764 3.707 3.499 3.355 3.250 3.169 4.029 3.833 3.690 3.581 5.208 4.785 4.501 4.297 5.408 5.041 4.781 4.587 10 1.372 4.144 11 12 13 14 15 0.697 0.695 0.694 0.692 0.691 0.876 0.873 0.870 0.868 0.866 1.088 1.083 1.079 1.076 1.074 1.363 1.356 1.350 1.345 1.341 1.796 1.782 1.771 1.761 1.753 2.201 2.179 2.160 2.145 2.131 2.328 2.303 2.282 2.264 2.249 2.718 2.681 2.650 2.624 2.602 3.106 3.055 3.012 2.977 2.947 3.497 3.428 3.372 3.326 3.286 4.025 3.930 3.852 3.787 3.733 4.437 4.318 4.221 4.140 4.073 16 17 18 19 20 0.690 0.689 0.688 0.688 0.687 0.865 0.863 0.862 0.861 0.860 1.071 1.069 1.067 1.066 1.064 1.337 1.333 1.330 1.328 1.325 1.746 1.740 1.734 1.729 1.725 2.120 2.110 2.101 2.093 2.086 2.235 2.224 2.214 2.205 2.197 2.583 2.567 2.552 2.539 2.528 2.921 2.898 2.878 2.861 2.845 3.252 3.222 3.197 3.174 3.153 3.686 3.646 3.610 3.579 3.552 4.015 3.965 3.922 3.883 3.850 21 22 0.686 0.686 0.685 0.685 0.684 0.859 0.858 0.858 0.857 0.856 1.063 1.061 1.060 1.059 1.058 1.323 1.321 1.319 1.318 1.316 1.721 1.717 1.714 1.711 1.708 2.080 2.074 2.069 2.064 2.060 2.189 2.183 2.177 2.172 2.167 2.518 2.508 2.500 2.492 2.485 2.831 2.819 2.807 2.797 2.787 3.135 3.119 3.104 3.091 3.078 3.527 3.505 3.485 3.467 3.450 3.819 3.792 3.768 3.745 3.725 26 27 28 0.684 0.684 0.683 0.856 0.855 0.855 1.058 1.057 1.056 1.315 1.314 1.313 1.706 1.703 1.701 2.056 2.052 2.048 2.162 2.158 2.154 2.479 2.473 2.467 2.779 2.771 2.763 3.067 3.057 3.047 3.435 3.421 3.408 3.707 3.690 3.674
Transcribed Image Text:A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed with no outliers. Do carpeted rooms have more bacteria than uncarpeted rooms at the a = 0.01 level of significance? Full data set O Carpeted 14.3 9.8 10.7 12.2 Uncarpeted 9.5 9.5 10.9 2.1 15 3 15.8 5.4 6.4 15.2 4.3 10.6 - X Student t-distribution Area in right tail t-Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 1.000 0.816 0.765 0.741 1.376 1.061 0.978 0.941 0.920 1.963 1.386 1.250 1.190 1.156 3.078 1.886 1.638 1.533 6.314 2.920 2.353 2.132 12.706 4.303 3.182 2.776 2.571 15.894 4.849 3.482 2.999 2.757 31.821 6.965 4.541 3.747 3.365 63.657 9.925 5.841 4.604 4.032 127.32 1 14.089 7453 5.598 318.309 636.619 31.599 12.924 8.610 6.869 22.327 10.215 3. 7173 5.893 5 0.727 1.476 2.015 4.773 1.943 1.895 1.860 1.833 1.812 2.612 4.317 5.959 6 7 8 0.718 0.711 0.706 0.703 0.700 0.906 0.896 0.889 0.883 0.879 1.134 1.119 1.108 1.100 1.093 1.440 1.415 1.397 1.383 2.447 2.365 2.306 2.262 2.228 2.517 2.449 2.398 2.359 3.143 2.998 2.896 2.821 2.764 3.707 3.499 3.355 3.250 3.169 4.029 3.833 3.690 3.581 5.208 4.785 4.501 4.297 5.408 5.041 4.781 4.587 10 1.372 4.144 11 12 13 14 15 0.697 0.695 0.694 0.692 0.691 0.876 0.873 0.870 0.868 0.866 1.088 1.083 1.079 1.076 1.074 1.363 1.356 1.350 1.345 1.341 1.796 1.782 1.771 1.761 1.753 2.201 2.179 2.160 2.145 2.131 2.328 2.303 2.282 2.264 2.249 2.718 2.681 2.650 2.624 2.602 3.106 3.055 3.012 2.977 2.947 3.497 3.428 3.372 3.326 3.286 4.025 3.930 3.852 3.787 3.733 4.437 4.318 4.221 4.140 4.073 16 17 18 19 20 0.690 0.689 0.688 0.688 0.687 0.865 0.863 0.862 0.861 0.860 1.071 1.069 1.067 1.066 1.064 1.337 1.333 1.330 1.328 1.325 1.746 1.740 1.734 1.729 1.725 2.120 2.110 2.101 2.093 2.086 2.235 2.224 2.214 2.205 2.197 2.583 2.567 2.552 2.539 2.528 2.921 2.898 2.878 2.861 2.845 3.252 3.222 3.197 3.174 3.153 3.686 3.646 3.610 3.579 3.552 4.015 3.965 3.922 3.883 3.850 21 22 0.686 0.686 0.685 0.685 0.684 0.859 0.858 0.858 0.857 0.856 1.063 1.061 1.060 1.059 1.058 1.323 1.321 1.319 1.318 1.316 1.721 1.717 1.714 1.711 1.708 2.080 2.074 2.069 2.064 2.060 2.189 2.183 2.177 2.172 2.167 2.518 2.508 2.500 2.492 2.485 2.831 2.819 2.807 2.797 2.787 3.135 3.119 3.104 3.091 3.078 3.527 3.505 3.485 3.467 3.450 3.819 3.792 3.768 3.745 3.725 26 27 28 0.684 0.684 0.683 0.856 0.855 0.855 1.058 1.057 1.056 1.315 1.314 1.313 1.706 1.703 1.701 2.056 2.052 2.048 2.162 2.158 2.154 2.479 2.473 2.467 2.779 2.771 2.763 3.067 3.057 3.047 3.435 3.421 3.408 3.707 3.690 3.674
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