This Question: 1 pt 70f 10 (6 complete) This Quiz: 10 pts Determine the margin o

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This Question: 1 pt 70f 10 (6 complete) This Quiz: 10 pts Determine the margin of error or a confidence interval to estimate the population proportion for the following confidence levels with a sample proportion equal to 0.45 and n = 120. a. 90% b. 95% c. 97% Cummulative probabilities to the left of z Click the icon to view a portion of the Cumulative Probabilities for the Standard Normal Distribution table. a The margin of error or a confidence interval to estimate the population proportion for the 90% confidence level is Round to three decimal places as needed.) Cumulative Probabilities for the Standard Normal Distribution b. The margin of error for a confidence interval to estimate the population proportion for the 95% confidence level is . Round to three decimal places as needed.) C. The margin of error for a confidence interval to estimate the population proportion for the 97% confidence level is] Round to three decimal places as needed.) ares in the figae FIRST DIGIT OF SECOND DIGIT OF 0.0 001 0,03 0.05 0.500 0.540 05060 0.51 20 0.5160 0.5199 0.5239 0.5279 0.5319 05359 0.5398 a5438 0.5478 0.5517 0.5557 0.5596 0.5636 0.5675 05714 05753 5793 05832 05871 0.5910 0.5948 0.5987 0.6026 06064 06103 06141 06179 06217 06255 06293 0,633 0.6368 0606 06443 06480 06517 0e534 0639 28 0664 0,6700 0.6736 0.672 6808 084 089 06915 0.6950 0.6985 0.7019 0.7054 07088 07123 07157 0 7190 07224 0,72570729 0,7324 0.7357 07389 0.7422 07454 07486 07517 0.7549 0.7580 0.7611 0,7642 0.7673 0.7704 a7734 0.7764 07794 0.7823 07852 0.7881 0.7910 093 0.7995 0023 0051 08078 08106 8133 0.81 59 0.8186 0.82 12 08238 0.8264 0.8289 09315 08340 0.8365 0.8389 08413 08438 0.8461 08485 08508 0853 08554 08577 0 8599 08621 08643 08665 0.886 8708 08729 0S749 0870 08790 0.8810 08330 08849 0,886 0,8888 08907 08925 08944 0896 08980 08997 0.9015 .9032 09049 09066 0.9082 99 09115 09131 09147 0916 09177 9192 0.9207 09222 09236 09251 09265 09279 09292 0.9306 09319 0.9332 09345 09357 09370 09382 0939 09406 09418 0.9429 09441 0.9452 09463 09474 09484 09495 09505 09515 09525 09535 09545 0.95540954 09573 09582 0991 09599 09008 09616 0.9625 09633 0.9641 0.9649 0.9656 09664 0.9671 0.9678 09686 09693 0.9699 09706 9713 09719 0972 973 09738 09744 09750 09756 0976 09767 09772 09778 09783 0.9788 09793 09798 0.9803 09808 09812 09817 0.9821 09826 09 04 09838 09842 09846 09850 09854 0.9857 0.9861 09864 09868 09871 09875 09878 09881 09884 09887 0990 0.0 0.1 0.3 0.5 0,6 0,7 0.8 0,9 10 1.1 1.2 1.3 1.5 1.6 1,8 2.0 Enter your answer in each of the answer boxes. PrintDone

Explanation / Answer

SEp = sqrt[ p * ( 1 - p ) / n ] = sqrt[0.45*0.55/120] = 0.0454

a) For alpha = 0.1, Z* = +/-1.64

Margin of error, E = (Z*) * s/sqrt(n) = 1.64 * 0.0454 = 0.074

b) Z* = 1.64

E = 1.96 * 0.0454 = 0.089

c) Z* = 2.17

E = 2.17 * 0.0454 = 0.099

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