10 - STAT 3360 - SPRING 2016 DUE BY APRIL 19 [SECTIONS 002, 003] || BY APRIL 20 [SECTION 001] SECTION [CIRCLE ONE! =>] FIRST NAME 001 002 LAST NAME 003 READ SECTIONS 15.1 AND 15.2. TABLE 5 IS REQUIRED. PROBLEM 1 [SECTION 15.1] EDUCATION EXPERTS BELIEVE THAT THE GRADE DISTRIBUTION AMONG STUDENTS WHO TAKE MATH OR STAT UNDERGRADUATE COURSES SHOULD BE AS SHOWN BELOW. THE STUDY OF 400 STUDENTS HAS SHOWN THE COUNTS SHOWN IN THE LAST ROW (COUNTS). GRADE PROPORTION OBSERVED A B C D F W TOTAL 15% 20% 40% 10% 10% 5% 100% 66 84 148 48 46 8 400 EXPECTED [A] WHAT ARE THE EXPECTED COUNTS IN EACH CATEGORY? SHOW THEM IN THE TABLE ABOVE. [B] WHAT IS THE TEST STATISTIC VALUE? TEST STATISTIC VALUE = HOW MANY DEGREES OF FREEDOM WILL YOU ASSESS? NUMBER OF DEGREES OF FREEDOM = [C] AT THE 5% SIGNIFICANCE LEVEL, DO THE RECORDS PROVIDE EVIDENCE THAT THE GRADE DISTRIBUTION MAY DIFFER FROM THE EXPECTATIONS EXPRESSED BY EXPERTS? CIRCLE YES (IF REJECT) OR NO (IF DO NOT REJECT) HERE. WHAT IS THE CRITICAL VALUE? STATE THE REJECTION RULE. REJECT THE NULL HYPOTHESIS IF [D] AT THE 1% SIGNIFICANCE LEVEL, DO THE RECORDS PROVIDE EVIDENCE THAT THE GRADE DISTRIBUTION MAY DIFFER FROM THE EXPECTATIONS EXPRESSED BY EXPERTS? CIRCLE YES (IF REJECT) OR NO (IF DO NOT REJECT) HERE. WHAT IS THE CRITICAL VALUE? STATE THE REJECTION RULE. REJECT THE NULL HYPOTHESIS IF 1 HOMEWORK 10 - STAT 3360 - SPRING 2016 DUE BY APRIL 19 [SECTIONS 002, 003] || BY APRIL 20 [SECTION 001] PROBLEM 2 [SECTION 15.2] STATISTICAL STUDIES WERE CONDUCTED AMONG STUDENTS. THE PURPOSE WAS TO FIND OUT WHETHER PERFORMANCE EVALUATIONS FOR INSTRUCTORS TEACHING DIFFERENT SUBJECT AREAS WERE DISTRIBUTED HOMOGENEOUSLY. THE TABLE BELOW SHOWS THE TOTALS ONLY. THE CATEGORIES LISTED BELOW INCLUDE (EX = EXCELLENT), (VG = VERY GOOD), GOOD, FAIR, POOR, AND (VP = VERY POOR). SUPPOSE THE CHI-SQUARE HOMOGENEITY TEST HAS SHOWN THE VALUE OF TEST STATISTIC = 29.875. COURSE EX SATISFACTION LEVEL VG GOOD FAIR POOR VP TOTAL MATH 400 STAT 300 PHYSICS 200 CHEMISTRY 100 TOTAL 300 200 200 150 100 50 1,000 [A] FIND THE EXPECTED COUNTS. FILL THE CELLS IN THE TABLE ABOVE. [B] HOW MANY DEGREES OF FREEDOM WILL BE ASSESSED TO THE CHI-SQUARED STATISTIC USED FOR THE HOMOGENEITY TEST? NUMBER OF DEGREES OF FREEDOM = [C] AT THE 1% SIGNIFICANCE LEVEL, DO YOU HAVE EVIDENCE THAT THE EVALUATION VARIES FROM ONE SUBJECT AREA TO THE OTHER? CIRCLE YES (IF REJECT) OR NO (IF DO NOT REJECT) HERE. WHAT IS THE CRITICAL VALUE? STATE THE REJECTION RULE. REJECT THE NULL HYPOTHESIS IF [D] AT THE 5% SIGNIFICANCE LEVEL, DO YOU HAVE EVIDENCE THAT THE EVALUATION VARIES FROM ONE SUBJECT AREA TO THE OTHER? CIRCLE YES (IF REJECT) OR NO (IF DO NOT REJECT) HERE. WHAT IS THE CRITICAL VALUE? STATE THE REJECTION RULE. REJECT THE NULL HYPOTHESIS IF 2 App-B.qxd 11/22/10 6:41 PM B-6 APPENDIX B TABLE 2 Page B-6 Poisson Probabilities k Tabulated values are P(X ... k) = a p(xi). (Values are rounded to four decimal places.) x=0 k 0.10 0.20 0.30 0.40 0.50 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 0.9048 0.8187 0.7408 0.6703 0.6065 0.3679 0.2231 0.1353 0.0821 0.0498 0.0302 0.0183 0.0111 1 0.9953 0.9825 0.9631 0.9384 0.9098 0.7358 0.5578 0.4060 0.2873 0.1991 0.1359 0.0916 0.0611 0.0404 0.0266 0.0174 0.0067 0.0041 0.0025 2 0.9998 0.9989 0.9964 0.9921 0.9856 0.9197 0.8088 0.6767 0.5438 0.4232 0.3208 0.2381 0.1736 0.1247 0.0884 0.0620 3 1.0000 0.9999 0.9997 0.9992 0.9982 0.9810 0.9344 0.8571 0.7576 0.6472 0.5366 0.4335 0.3423 0.2650 0.2017 0.1512 4 1.0000 1.0000 0.9999 0.9998 0.9963 0.9814 0.9473 0.8912 0.8153 0.7254 0.6288 0.5321 0.4405 0.3575 0.2851 5 1.0000 1.0000 0.9994 0.9955 0.9834 0.9580 0.9161 0.8576 0.7851 0.7029 0.6160 0.5289 0.4457 6 0.9999 0.9991 0.9955 0.9858 0.9665 0.9347 0.8893 0.8311 0.7622 0.6860 0.6063 7 1.0000 0.9998 0.9989 0.9958 0.9881 0.9733 0.9489 0.9134 0.8666 0.8095 0.7440 8 1.0000 0.9998 0.9989 0.9962 0.9901 0.9786 0.9597 0.9319 0.8944 0.8472 1.0000 0.9997 0.9989 0.9967 0.9919 0.9829 0.9682 0.9462 0.9161 10 0.9999 0.9997 0.9990 0.9972 0.9933 0.9863 0.9747 0.9574 11 1.0000 0.9999 0.9997 0.9991 0.9976 0.9945 0.9890 0.9799 1.0000 0.9999 0.9997 0.9992 0.9980 0.9955 0.9912 1.0000 0.9999 0.9997 0.9993 0.9983 0.9964 1.0000 0.9999 0.9998 0.9994 0.9986 9 12 13 14 15 1.0000 0.9999 0.9998 0.9995 16 1.0000 0.9999 0.9998 17 1.0000 0.9999 18 1.0000 19 20 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. App-B.qxd 11/22/10 6:41 PM Page B-7 APPENDIX B TABLE 2 B-7 (Continued ) k 10 11 12 13 14 15 0 0.0015 0.0009 0.0006 0.0003 0.0002 0.0001 0.0001 6.50 7.00 7.50 8.00 8.50 9.00 9.50 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 1 0.0113 0.0073 0.0047 0.0030 0.0019 0.0012 0.0008 0.0005 0.0002 0.0001 0.0000 0.0000 0.0000 2 0.0430 0.0296 0.0203 0.0138 0.0093 0.0062 0.0042 0.0028 0.0012 0.0005 0.0002 0.0001 0.0000 3 0.1118 0.0818 0.0591 0.0424 0.0301 0.0212 0.0149 0.0103 0.0049 0.0023 0.0011 0.0005 0.0002 4 0.2237 0.1730 0.1321 0.0996 0.0744 0.0550 0.0403 0.0293 0.0151 0.0076 0.0037 0.0018 0.0009 5 0.3690 0.3007 0.2414 0.1912 0.1496 0.1157 0.0885 0.0671 0.0375 0.0203 0.0107 0.0055 0.0028 6 0.5265 0.4497 0.3782 0.3134 0.2562 0.2068 0.1649 0.1301 0.0786 0.0458 0.0259 0.0142 0.0076 7 0.6728 0.5987 0.5246 0.4530 0.3856 0.3239 0.2687 0.2202 0.1432 0.0895 0.0540 0.0316 0.0180 8 0.7916 0.7291 0.6620 0.5925 0.5231 0.4557 0.3918 0.3328 0.2320 0.1550 0.0998 0.0621 0.0374 9 0.8774 0.8305 0.7764 0.7166 0.6530 0.5874 0.5218 0.4579 0.3405 0.2424 0.1658 0.1094 0.0699 10 0.9332 0.9015 0.8622 0.8159 0.7634 0.7060 0.6453 0.5830 0.4599 0.3472 0.2517 0.1757 0.1185 11 0.9661 0.9467 0.9208 0.8881 0.8487 0.8030 0.7520 0.6968 0.5793 0.4616 0.3532 0.2600 0.1848 12 0.9840 0.9730 0.9573 0.9362 0.9091 0.8758 0.8364 0.7916 0.6887 0.5760 0.4631 0.3585 0.2676 0.3632 13 0.9929 0.9872 0.9784 0.9658 0.9486 0.9261 0.8981 0.8645 0.7813 0.6815 0.5730 0.4644 14 0.9970 0.9943 0.9897 0.9827 0.9726 0.9585 0.9400 0.9165 0.8540 0.7720 0.6751 0.5704 0.4657 15 0.9988 0.9976 0.9954 0.9918 0.9862 0.9780 0.9665 0.9513 0.9074 0.8444 0.7636 0.6694 0.5681 16 0.9996 0.9990 0.9980 0.9963 0.9934 0.9889 0.9823 0.9730 0.9441 0.8987 0.8355 0.7559 0.6641 17 0.9998 0.9996 0.9992 0.9984 0.9970 0.9947 0.9911 0.9857 0.9678 0.9370 0.8905 0.8272 0.7489 18 0.9999 0.9999 0.9997 0.9993 0.9987 0.9976 0.9957 0.9928 0.9823 0.9626 0.9302 0.8826 0.8195 19 1.0000 1.0000 0.9999 0.9997 0.9995 0.9989 0.9980 0.9965 0.9907 0.9787 0.9573 0.9235 0.8752 20 1.0000 0.9999 0.9998 0.9996 0.9991 0.9984 0.9953 0.9884 0.9750 0.9521 0.9170 0.9469 21 1.0000 0.9999 0.9998 0.9996 0.9993 0.9977 0.9939 0.9859 0.9712 22 1.0000 0.9999 0.9999 0.9997 0.9990 0.9970 0.9924 0.9833 0.9673 23 1.0000 0.9999 0.9999 0.9995 0.9985 0.9960 0.9907 0.9805 24 1.0000 1.0000 0.9998 0.9993 0.9980 0.9950 0.9888 25 0.9999 0.9997 0.9990 0.9974 0.9938 26 1.0000 0.9999 0.9995 0.9987 0.9967 27 0.9999 0.9998 0.9994 0.9983 28 1.0000 0.9999 0.9997 0.9991 1.0000 29 0.9999 0.9996 30 0.9999 0.9998 31 1.0000 0.9999 32 1.0000 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. App-B.qxd 11/22/10 6:41 PM B-8 APPENDIX B TABLE 3 Page B-8 Cumulative Standardized Normal Probabilities z 0 P(- q 6 Z 6 z) Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -3.0 0.0013 0.0013 0.0013 0.0012 0.0012 0.0011 0.0011 0.0011 0.0010 0.0010 -2.9 0.0019 0.0018 0.0018 0.0017 0.0016 0.0016 0.0015 0.0015 0.0014 0.0014 -2.8 0.0026 0.0025 0.0024 0.0023 0.0023 0.0022 0.0021 0.0021 0.0020 0.0019 -2.7 0.0035 0.0034 0.0033 0.0032 0.0031 0.0030 0.0029 0.0028 0.0027 0.0026 -2.6 0.0047 0.0045 0.0044 0.0043 0.0041 0.0040 0.0039 0.0038 0.0037 0.0036 -2.5 0.0062 0.0060 0.0059 0.0057 0.0055 0.0054 0.0052 0.0051 0.0049 0.0048 -2.4 0.0082 0.0080 0.0078 0.0075 0.0073 0.0071 0.0069 0.0068 0.0066 0.0064 -2.3 0.0107 0.0104 0.0102 0.0099 0.0096 0.0094 0.0091 0.0089 0.0087 0.0084 -2.2 0.0139 0.0136 0.0132 0.0129 0.0125 0.0122 0.0119 0.0116 0.0113 0.0110 -2.1 0.0179 0.0174 0.0170 0.0166 0.0162 0.0158 0.0154 0.0150 0.0146 0.0143 -2.0 0.0228 0.0222 0.0217 0.0212 0.0207 0.0202 0.0197 0.0192 0.0188 0.0183 -1.9 0.0287 0.0281 0.0274 0.0268 0.0262 0.0256 0.0250 0.0244 0.0239 0.0233 -1.8 0.0359 0.0351 0.0344 0.0336 0.0329 0.0322 0.0314 0.0307 0.0301 0.0294 -1.7 0.0446 0.0436 0.0427 0.0418 0.0409 0.0401 0.0392 0.0384 0.0375 0.0367 -1.6 0.0548 0.0537 0.0526 0.0516 0.0505 0.0495 0.0485 0.0475 0.0465 0.0455 -1.5 0.0668 0.0655 0.0643 0.0630 0.0618 0.0606 0.0594 0.0582 0.0571 0.0559 -1.4 0.0808 0.0793 0.0778 0.0764 0.0749 0.0735 0.0721 0.0708 0.0694 0.0681 -1.3 0.0968 0.0951 0.0934 0.0918 0.0901 0.0885 0.0869 0.0853 0.0838 0.0823 -1.2 0.1151 0.1131 0.1112 0.1093 0.1075 0.1056 0.1038 0.1020 0.1003 0.0985 -1.1 0.1357 0.1335 0.1314 0.1292 0.1271 0.1251 0.1230 0.1210 0.1190 0.1170 -1.0 0.1587 0.1562 0.1539 0.1515 0.1492 0.1469 0.1446 0.1423 0.1401 0.1379 -0.9 0.1841 0.1814 0.1788 0.1762 0.1736 0.1711 0.1685 0.1660 0.1635 0.1611 -0.8 0.2119 0.2090 0.2061 0.2033 0.2005 0.1977 0.1949 0.1922 0.1894 0.1867 -0.7 0.2420 0.2389 0.2358 0.2327 0.2296 0.2266 0.2236 0.2206 0.2177 0.2148 -0.6 0.2743 0.2709 0.2676 0.2643 0.2611 0.2578 0.2546 0.2514 0.2483 0.2451 -0.5 0.3085 0.3050 0.3015 0.2981 0.2946 0.2912 0.2877 0.2843 0.2810 0.2776 -0.4 0.3446 0.3409 0.3372 0.3336 0.3300 0.3264 0.3228 0.3192 0.3156 0.3121 -0.3 0.3821 0.3783 0.3745 0.3707 0.3669 0.3632 0.3594 0.3557 0.3520 0.3483 -0.2 0.4207 0.4168 0.4129 0.4090 0.4052 0.4013 0.3974 0.3936 0.3897 0.3859 -0.1 0.4602 0.4562 0.4522 0.4483 0.4443 0.4404 0.4364 0.4325 0.4286 0.4247 -0.0 0.5000 0.4960 0.4920 0.4880 0.4840 0.4801 0.4761 0.4721 0.4681 0.4641 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. App-B.qxd 11/22/10 6:41 PM Page B-9 APPENDIX B TABLE 3 B-9 (Continued ) 0 z P (- q 6 Z 6 z). Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.0 0.5000 0.5040 0.5080 0.5120 0.5160 0.5199 0.5239 0.5279 0.5319 0.5359 0.1 0.5398 0.5438 0.5478 0.5517 0.5557 0.5596 0.5636 0.5675 0.5714 0.5753 0.2 0.5793 0.5832 0.5871 0.5910 0.5948 0.5987 0.6026 0.6064 0.6103 0.6141 0.3 0.6179 0.6217 0.6255 0.6293 0.6331 0.6368 0.6406 0.6443 0.6480 0.6517 0.4 0.6554 0.6591 0.6628 0.6664 0.6700 0.6736 0.6772 0.6808 0.6844 0.6879 0.5 0.6915 0.6950 0.6985 0.7019 0.7054 0.7088 0.7123 0.7157 0.7190 0.7224 0.6 0.7257 0.7291 0.7324 0.7357 0.7389 0.7422 0.7454 0.7486 0.7517 0.7549 0.7 0.7580 0.7611 0.7642 0.7673 0.7704 0.7734 0.7764 0.7794 0.7823 0.7852 0.8 0.7881 0.7910 0.7939 0.7967 0.7995 0.8023 0.8051 0.8078 0.8106 0.8133 0.9 0.8159 0.8186 0.8212 0.8238 0.8264 0.8289 0.8315 0.8340 0.8365 0.8389 1.0 0.8413 0.8438 0.8461 0.8485 0.8508 0.8531 0.8554 0.8577 0.8599 0.8621 1.1 0.8643 0.8665 0.8686 0.8708 0.8729 0.8749 0.8770 0.8790 0.8810 0.8830 1.2 0.8849 0.8869 0.8888 0.8907 0.8925 0.8944 0.8962 0.8980 0.8997 0.9015 1.3 0.9032 0.9049 0.9066 0.9082 0.9099 0.9115 0.9131 0.9147 0.9162 0.9177 1.4 0.9192 0.9207 0.9222 0.9236 0.9251 0.9265 0.9279 0.9292 0.9306 0.9319 1.5 0.9332 0.9345 0.9357 0.9370 0.9382 0.9394 0.9406 0.9418 0.9429 0.9441 1.6 0.9452 0.9463 0.9474 0.9484 0.9495 0.9505 0.9515 0.9525 0.9535 0.9545 1.7 0.9554 0.9564 0.9573 0.9582 0.9591 0.9599 0.9608 0.9616 0.9625 0.9633 1.8 0.9641 0.9649 0.9656 0.9664 0.9671 0.9678 0.9686 0.9693 0.9699 0.9706 1.9 0.9713 0.9719 0.9726 0.9732 0.9738 0.9744 0.9750 0.9756 0.9761 0.9767 2.0 0.9772 0.9778 0.9783 0.9788 0.9793 0.9798 0.9803 0.9808 0.9812 0.9817 2.1 0.9821 0.9826 0.9830 0.9834 0.9838 0.9842 0.9846 0.9850 0.9854 0.9857 2.2 0.9861 0.9864 0.9868 0.9871 0.9875 0.9878 0.9881 0.9884 0.9887 0.9890 2.3 0.9893 0.9896 0.9898 0.9901 0.9904 0.9906 0.9909 0.9911 0.9913 0.9916 2.4 0.9918 0.9920 0.9922 0.9925 0.9927 0.9929 0.9931 0.9932 0.9934 0.9936 2.5 0.9938 0.9940 0.9941 0.9943 0.9945 0.9946 0.9948 0.9949 0.9951 0.9952 2.6 0.9953 0.9955 0.9956 0.9957 0.9959 0.9960 0.9961 0.9962 0.9963 0.9964 2.7 0.9965 0.9966 0.9967 0.9968 0.9969 0.9970 0.9971 0.9972 0.9973 0.9974 2.8 0.9974 0.9975 0.9976 0.9977 0.9977 0.9978 0.9979 0.9979 0.9980 0.9981 2.9 0.9981 0.9982 0.9982 0.9983 0.9984 0.9984 0.9985 0.9985 0.9986 0.9986 3.0 0.9987 0.9987 0.9987 0.9988 0.9988 0.9989 0.9989 0.9989 0.9990 0.9990 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. App-B.qxd 11/22/10 B-10 6:41 PM Page B-10 APPENDIX B TABLE 4 Critical Values of the Student t Distribution A tA Degrees of Freedom 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110 120 130 140 150 160 170 180 190 200 q t.100 t.050 t.025 t.010 t.005 3.078 1.886 1.638 1.533 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 1.321 1.319 1.318 1.316 1.315 1.314 1.313 1.311 1.310 1.306 1.303 1.301 1.299 1.297 1.296 1.295 1.294 1.293 1.292 1.292 1.291 1.291 1.290 1.289 1.289 1.288 1.288 1.287 1.287 1.287 1.286 1.286 1.286 1.282 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 1.690 1.684 1.679 1.676 1.673 1.671 1.669 1.667 1.665 1.664 1.663 1.662 1.661 1.660 1.659 1.658 1.657 1.656 1.655 1.654 1.654 1.653 1.653 1.653 1.645 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 2.030 2.021 2.014 2.009 2.004 2.000 1.997 1.994 1.992 1.990 1.988 1.987 1.985 1.984 1.982 1.980 1.978 1.977 1.976 1.975 1.974 1.973 1.973 1.972 1.960 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 2.438 2.423 2.412 2.403 2.396 2.390 2.385 2.381 2.377 2.374 2.371 2.368 2.366 2.364 2.361 2.358 2.355 2.353 2.351 2.350 2.348 2.347 2.346 2.345 2.326 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 2.724 2.704 2.690 2.678 2.668 2.660 2.654 2.648 2.643 2.639 2.635 2.632 2.629 2.626 2.621 2.617 2.614 2.611 2.609 2.607 2.605 2.603 2.602 2.601 2.576 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. App-B.qxd 11/22/10 6:41 PM Page B-11 APPENDIX B TABLE 5 B-11 Critical Values of the 2 Distribution f(x2) A x2 0 x2 A Degrees of Freedom 1 2 3 4 5 6 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 60 70 80 90 100 2 .995 0.000039 0.0100 0.072 0.207 0.412 0.676 0.989 1.34 1.73 2.16 2.60 3.07 3.57 4.07 4.60 5.14 5.70 6.26 6.84 7.43 8.03 8.64 9.26 9.89 10.5 11.2 11.8 12.5 13.1 13.8 20.7 28.0 35.5 43.3 51.2 59.2 67.3 2 .990 2 .975 2 .950 2 .900 2 .100 2 .050 2 .025 2 .010 2 .005 0.000157 0.0201 0.115 0.297 0.554 0.872 1.24 1.65 2.09 2.56 3.05 3.57 4.11 4.66 5.23 5.81 6.41 7.01 7.63 8.26 8.90 9.54 10.2 10.9 11.5 12.2 12.9 13.6 14.3 15.0 22.2 29.7 37.5 45.4 53.5 61.8 70.1 0.000982 0.0506 0.216 0.484 0.831 1.24 1.69 2.18 2.70 3.25 3.82 4.40 5.01 5.63 6.26 6.91 7.56 8.23 8.91 9.59 10.3 11.0 11.7 12.4 13.1 13.8 14.6 15.3 16.0 16.8 24.4 32.4 40.5 48.8 57.2 65.6 74.2 0.00393 0.103 0.352 0.711 1.15 1.64 2.17 2.73 3.33 3.94 4.57 5.23 5.89 6.57 7.26 7.96 8.67 9.39 10.1 10.9 11.6 12.3 13.1 13.8 14.6 15.4 16.2 16.9 17.7 18.5 26.5 34.8 43.2 51.7 60.4 69.1 77.9 0.0158 0.211 0.584 1.06 1.61 2.20 2.83 3.49 4.17 4.87 5.58 6.30 7.04 7.79 8.55 9.31 10.1 10.9 11.7 12.4 13.2 14.0 14.8 15.7 16.5 17.3 18.1 18.9 19.8 20.6 29.1 37.7 46.5 55.3 64.3 73.3 82.4 2.71 4.61 6.25 7.78 9.24 10.6 12.0 13.4 14.7 16.0 17.3 18.5 19.8 21.1 22.3 23.5 24.8 26.0 27.2 28.4 29.6 30.8 32.0 33.2 34.4 35.6 36.7 37.9 39.1 40.3 51.8 63.2 74.4 85.5 96.6 108 118 3.84 5.99 7.81 9.49 11.1 12.6 14.1 15.5 16.9 18.3 19.7 21.0 22.4 23.7 25.0 26.3 27.6 28.9 30.1 31.4 32.7 33.9 35.2 36.4 37.7 38.9 40.1 41.3 42.6 43.8 55.8 67.5 79.1 90.5 102 113 124 5.02 7.38 9.35 11.1 12.8 14.4 16.0 17.5 19.0 20.5 21.9 23.3 24.7 26.1 27.5 28.8 30.2 31.5 32.9 34.2 35.5 36.8 38.1 39.4 40.6 41.9 43.2 44.5 45.7 47.0 59.3 71.4 83.3 95.0 107 118 130 6.63 9.21 11.3 13.3 15.1 16.8 18.5 20.1 21.7 23.2 24.7 26.2 27.7 29.1 30.6 32.0 33.4 34.8 36.2 37.6 38.9 40.3 41.6 43.0 44.3 45.6 47.0 48.3 49.6 50.9 63.7 76.2 88.4 100 112 124 136 7.88 10.6 12.8 14.9 16.7 18.5 20.3 22.0 23.6 25.2 26.8 28.3 29.8 31.3 32.8 34.3 35.7 37.2 38.6 40.0 41.4 42.8 44.2 45.6 46.9 48.3 49.6 51.0 52.3 53.7 66.8 79.5 92.0 104 116 128 140 Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it