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A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 99% confidence if (a) he uses a previous estimate of 22%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1), Click here to view the standard normal distribution table (page 2). (a) n= (Round up to the nearest integer.)

A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 99% confidence if (a) he uses a previous estimate of 22%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1), Click here to view the standard normal distribution table (page 2). (a) n= (Round up to the nearest integer.)

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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Standard normal distribution table (page 1) Standard normal distribution table (page 2) Area Area Standard Normal Distribution Standard Nomal Distribution 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -3.4 -3.3 -3.2 0.0003 0.0005 0.0007 0.0010 0.0013 0.0003 0.0005 0.0007 0.0003 0.0004 0.0006 0.0003 0.0004 0.0006 0.0003 0.0004 0.0006 0.0002 0.0003 0.0005 0.5000 0.5398 0.5793 0.5080 0.5478 0.5871 0.5160 0.5557 0.5948 0.5239 0.5636 0.6026 0.5359 0.5753 0.6141 0.6517 0.6879 0.0003 0.0005 0.0003 0.0004 0.0006 0.0003 0.0004 0.0005 0.0003 0.0004 0.0005 0.5040 0.5438 0.5832 0.5120 0.5517 0.5910 0.5199 0.5596 0.5987 0.5279 0.5675 0.6064 0.5319 0.5714 0.6103 0.0 0.1 0.2 0.0006 -3.1 -3.0 0.0009 0.0013 0.0009 0.0013 0.0009 0.0012 0.0008 0.0012 0.0008 0.0011 0.0008 0.0011 0.0008 0.0011 0.0007 0.0010 0.6179 0.6554 0.6255 0.6628 0.6368 0.6736 0.0007 0.3 0.4 0.6217 0.6591 0.6293 0.6331 0.6700 0.6406 0.6772 0.6443 0.6480 0.6844 0.0010 0.6664 0.6808 -29 -28 0.0018 0.0024 0.0033 0.0017 0.0023 0.0032 0.0016 0.0023 0.0031 0.0015 0.0021 0.0029 0.0015 0.0021 0.0028 0.0038 0.0051 0.0014 0.0019 0.0026 0.6915 0.7257 0.7580 0.6950 0.7291 0.7611 0.6985 0.7324 0.7642 0.7054 0.7389 0.7704 0.7088 0.7422 0.7734 0.7190 0.7517 0.7823 0.0019 0.0026 0.0035 0.0018 0.0025 0.0034 0.0016 0.0022 0.0030 0.0014 0.0020 0.0027 0.7157 0.7486 0.5 0.7019 0.7357 0.7673 0.7123 0.7454 0.7764 0.7224 0.7549 0.7852 0.8133 0.8389 0.6 -2.7 -2.6 -2.5 0.7 0.7794 0.0047 0.0062 0.0045 0.0060 0.0044 0.0059 0.0043 0.0057 0.0041 0.0055 0.0040 0.0054 0.0039 0.0052 0.0037 0.0049 0.0036 0.0048 0.8 0.9 0.7881 0.8159 0.7910 0.8186 0.7939 0.8212 0.7967 0.8238 0.7995 0.8264 0.8023 0.8289 0.8078 0.8340 0.8051 0.8106 0.8315 0.8365 0.0075 0.0099 0.0129 0.0071 0.0094 0.0122 0.0068 0.0064 0.0084 0.0110 0.8413 0.8643 0.8849 0.9032 0.9192 0.8461 0.8686 0.8888 0.8577 0.8790 0.8980 0.8599 -2.4 -2.3 -2.2 0.0082 0.0107 0.0139 0.0080 0.0104 0.0136 0.0078 0.0102 0.0132 0.0073 0.0096 0.0125 0.0069 0.0091 0.0119 0.0154 0.0197 0.0089 0.0116 0.0150 0.0192 0.0066 0.0087 0.0113 0.0146 0.0188 1.0 1.1 1.2 0.8438 0.8665 0.8869 0.8485 0.8708 0.8907 0.8508 0.8729 0.8925 0.9099 0.8531 0.8749 0.8944 0.8554 0.8770 0.8962 0.9131 0.8810 0.8997 0.9162 0.9306 0.8621 0.8830 0.90 15 -2.1 -2.0 0.0179 0.0228 0.0174 0.0222 0.0170 0.0217 0.0166 0.0212 0.0162 0.0207 0.0158 0.0202 0.0143 0.0183 1.3 1.4 0.9049 0.9207 0.9066 0.9222 0.9082 0.9236 0.9115 0.9265 0.9147 0.9292 0.9177 0.9319 0.9251 0.9279 -1.9 -1.8 -1.7 -1.6 -1.5 0.0287 0.0359 0.0446 0.0256 0.0322 0.0401 0.0495 0.0606 0.0250 0.0314 0.0392 1.5 1.6 1.7 0.9357 0.9474 0.9573 0.9370 0.9484 0.9582 0.9429 0.9535 0.9625 0.0274 0.0281 0.0351 0.0436 0.0268 0.0336 0.0418 0.0516 0.0630 0.0262 0.0329 0.0409 0.0505 0.0618 0.0239 0.0301 0.0375 0.9332 0.9452 0.9554 0.9345 0.9463 0.9564 0.9394 0.9505 0.9599 0.0244 0.0307 0.0233 0.0294 0.0367 0.9382 0.9495 0.9591 0.9671 0.9738 0.0344 0.0427 0.0526 0.9406 0.9515 0.9418 0.9525 0.9441 0.9545 0.9633 0.9616 0.9693 0.9756 0.0384 0.9608 0.0548 0.0668 0.0475 0.0582 0.9664 0.9732 0.9678 0.9744 0.9706 0.9767 0.0537 0.0485 0.0594 0.0455 0.0559 1.8 1.9 0.9641 0.9713 0.9656 0.9726 0.9686 0.0465 0.0571 0.9649 0.9719 0.9699 0.9761 0.0655 0.0643 0.9750 0.0793 0.0951 0.1131 0.0778 0.0934 0.1112 0.0764 0.0918 0.1093 0.1292 0.1515 0.0749 0.0735 0.0885 0.1056 0.0721 0.0869 0.1038 0.0708 0.0853 0.1020 2.0 2.1 2.2 0.9778 0.9793 0.9798 0.9842 0.9878 0.9808 0.9850 0.9812 0.9854 0.9887 0.9913 0.9934 -1.4 -13 0.0808 0.0968 0.1151 0.0901 0.1075 0.1271 0.1492 0.0694 0.0838 0.1003 0.0681 0.0823 0.0985 0.1170 0.1379 0.9772 0.9821 0.9861 0.9783 0.9830 0.9868 0.9788 0.9834 0.9871 0.9803 0.9846 0.9881 0.9817 0.9857 0.9890 0.9826 0.9838 0.9875 0.9864 0.9896 0.9920 -1.2 0.9884 -1.1 -1.0 0.1357 0.1587 0.1335 0.1562 0.1314 0.1539 0.1251 0.1469 0.1230 0.1446 0.1210 0.1423 0.1190 0.1401 2.3 2.4 0.9893 0.9918 0.9901 0.9925 0.9906 0.9929 0.9898 0.9904 0.9927 0.9909 0.9911 0.9916 0.9936 0.9922 0.9931 0.9932 -0.9 -08 -0 7. 0.1736 0.2005 0 2296 2.5 2.6 27 0.9940 0.9955 0 0066 0.9941 0.9956 0 0067 0.9951 0.9963 n 0073 0.9948 0.9949 0.9962 O 0072 0.1762 0.1711 0.1685 0.1949 0 2236 0.1660 0.1922 02206 0.1635 0.1841 0.2119 02420 0.1814 0.2090 0 2380 0.1788 0.2061 0 2358 0.2033 0 2327 0.1977 0 2266 0.1894 0 2177 0.1611 0.1867 0.9938 0.9953 n 0065 0.9943 0.9957 O 0068 0.9945 0.9959 0 0060 0.9946 0.9960 n 0070 0.9961 0 0071 0.9952 0.9964 0 0074 02148
Transcribed Image Text:Standard normal distribution table (page 1) Standard normal distribution table (page 2) Area Area Standard Normal Distribution Standard Nomal Distribution 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -3.4 -3.3 -3.2 0.0003 0.0005 0.0007 0.0010 0.0013 0.0003 0.0005 0.0007 0.0003 0.0004 0.0006 0.0003 0.0004 0.0006 0.0003 0.0004 0.0006 0.0002 0.0003 0.0005 0.5000 0.5398 0.5793 0.5080 0.5478 0.5871 0.5160 0.5557 0.5948 0.5239 0.5636 0.6026 0.5359 0.5753 0.6141 0.6517 0.6879 0.0003 0.0005 0.0003 0.0004 0.0006 0.0003 0.0004 0.0005 0.0003 0.0004 0.0005 0.5040 0.5438 0.5832 0.5120 0.5517 0.5910 0.5199 0.5596 0.5987 0.5279 0.5675 0.6064 0.5319 0.5714 0.6103 0.0 0.1 0.2 0.0006 -3.1 -3.0 0.0009 0.0013 0.0009 0.0013 0.0009 0.0012 0.0008 0.0012 0.0008 0.0011 0.0008 0.0011 0.0008 0.0011 0.0007 0.0010 0.6179 0.6554 0.6255 0.6628 0.6368 0.6736 0.0007 0.3 0.4 0.6217 0.6591 0.6293 0.6331 0.6700 0.6406 0.6772 0.6443 0.6480 0.6844 0.0010 0.6664 0.6808 -29 -28 0.0018 0.0024 0.0033 0.0017 0.0023 0.0032 0.0016 0.0023 0.0031 0.0015 0.0021 0.0029 0.0015 0.0021 0.0028 0.0038 0.0051 0.0014 0.0019 0.0026 0.6915 0.7257 0.7580 0.6950 0.7291 0.7611 0.6985 0.7324 0.7642 0.7054 0.7389 0.7704 0.7088 0.7422 0.7734 0.7190 0.7517 0.7823 0.0019 0.0026 0.0035 0.0018 0.0025 0.0034 0.0016 0.0022 0.0030 0.0014 0.0020 0.0027 0.7157 0.7486 0.5 0.7019 0.7357 0.7673 0.7123 0.7454 0.7764 0.7224 0.7549 0.7852 0.8133 0.8389 0.6 -2.7 -2.6 -2.5 0.7 0.7794 0.0047 0.0062 0.0045 0.0060 0.0044 0.0059 0.0043 0.0057 0.0041 0.0055 0.0040 0.0054 0.0039 0.0052 0.0037 0.0049 0.0036 0.0048 0.8 0.9 0.7881 0.8159 0.7910 0.8186 0.7939 0.8212 0.7967 0.8238 0.7995 0.8264 0.8023 0.8289 0.8078 0.8340 0.8051 0.8106 0.8315 0.8365 0.0075 0.0099 0.0129 0.0071 0.0094 0.0122 0.0068 0.0064 0.0084 0.0110 0.8413 0.8643 0.8849 0.9032 0.9192 0.8461 0.8686 0.8888 0.8577 0.8790 0.8980 0.8599 -2.4 -2.3 -2.2 0.0082 0.0107 0.0139 0.0080 0.0104 0.0136 0.0078 0.0102 0.0132 0.0073 0.0096 0.0125 0.0069 0.0091 0.0119 0.0154 0.0197 0.0089 0.0116 0.0150 0.0192 0.0066 0.0087 0.0113 0.0146 0.0188 1.0 1.1 1.2 0.8438 0.8665 0.8869 0.8485 0.8708 0.8907 0.8508 0.8729 0.8925 0.9099 0.8531 0.8749 0.8944 0.8554 0.8770 0.8962 0.9131 0.8810 0.8997 0.9162 0.9306 0.8621 0.8830 0.90 15 -2.1 -2.0 0.0179 0.0228 0.0174 0.0222 0.0170 0.0217 0.0166 0.0212 0.0162 0.0207 0.0158 0.0202 0.0143 0.0183 1.3 1.4 0.9049 0.9207 0.9066 0.9222 0.9082 0.9236 0.9115 0.9265 0.9147 0.9292 0.9177 0.9319 0.9251 0.9279 -1.9 -1.8 -1.7 -1.6 -1.5 0.0287 0.0359 0.0446 0.0256 0.0322 0.0401 0.0495 0.0606 0.0250 0.0314 0.0392 1.5 1.6 1.7 0.9357 0.9474 0.9573 0.9370 0.9484 0.9582 0.9429 0.9535 0.9625 0.0274 0.0281 0.0351 0.0436 0.0268 0.0336 0.0418 0.0516 0.0630 0.0262 0.0329 0.0409 0.0505 0.0618 0.0239 0.0301 0.0375 0.9332 0.9452 0.9554 0.9345 0.9463 0.9564 0.9394 0.9505 0.9599 0.0244 0.0307 0.0233 0.0294 0.0367 0.9382 0.9495 0.9591 0.9671 0.9738 0.0344 0.0427 0.0526 0.9406 0.9515 0.9418 0.9525 0.9441 0.9545 0.9633 0.9616 0.9693 0.9756 0.0384 0.9608 0.0548 0.0668 0.0475 0.0582 0.9664 0.9732 0.9678 0.9744 0.9706 0.9767 0.0537 0.0485 0.0594 0.0455 0.0559 1.8 1.9 0.9641 0.9713 0.9656 0.9726 0.9686 0.0465 0.0571 0.9649 0.9719 0.9699 0.9761 0.0655 0.0643 0.9750 0.0793 0.0951 0.1131 0.0778 0.0934 0.1112 0.0764 0.0918 0.1093 0.1292 0.1515 0.0749 0.0735 0.0885 0.1056 0.0721 0.0869 0.1038 0.0708 0.0853 0.1020 2.0 2.1 2.2 0.9778 0.9793 0.9798 0.9842 0.9878 0.9808 0.9850 0.9812 0.9854 0.9887 0.9913 0.9934 -1.4 -13 0.0808 0.0968 0.1151 0.0901 0.1075 0.1271 0.1492 0.0694 0.0838 0.1003 0.0681 0.0823 0.0985 0.1170 0.1379 0.9772 0.9821 0.9861 0.9783 0.9830 0.9868 0.9788 0.9834 0.9871 0.9803 0.9846 0.9881 0.9817 0.9857 0.9890 0.9826 0.9838 0.9875 0.9864 0.9896 0.9920 -1.2 0.9884 -1.1 -1.0 0.1357 0.1587 0.1335 0.1562 0.1314 0.1539 0.1251 0.1469 0.1230 0.1446 0.1210 0.1423 0.1190 0.1401 2.3 2.4 0.9893 0.9918 0.9901 0.9925 0.9906 0.9929 0.9898 0.9904 0.9927 0.9909 0.9911 0.9916 0.9936 0.9922 0.9931 0.9932 -0.9 -08 -0 7. 0.1736 0.2005 0 2296 2.5 2.6 27 0.9940 0.9955 0 0066 0.9941 0.9956 0 0067 0.9951 0.9963 n 0073 0.9948 0.9949 0.9962 O 0072 0.1762 0.1711 0.1685 0.1949 0 2236 0.1660 0.1922 02206 0.1635 0.1841 0.2119 02420 0.1814 0.2090 0 2380 0.1788 0.2061 0 2358 0.2033 0 2327 0.1977 0 2266 0.1894 0 2177 0.1611 0.1867 0.9938 0.9953 n 0065 0.9943 0.9957 O 0068 0.9945 0.9959 0 0060 0.9946 0.9960 n 0070 0.9961 0 0071 0.9952 0.9964 0 0074 02148
A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 99% confidence if (a) he uses a previous estimate of 22%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer.)
Transcribed Image Text:A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 99% confidence if (a) he uses a previous estimate of 22%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer.)
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