use the sample data in confidence level given below to complete parts (a) through (d) a research Institute poll asked re
Posted: Sun Jul 10, 2022 10:12 am
use the sample data in confidence level given below to complete parts (a) through (d)
a research Institute poll asked respondents if they felt vulnerable to identify theft. In the poll, n=974 and x= 512 who said "yes." Used a 95% confidence level.
Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=972 and x512 who said "yes" Use a 95% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p (Round to three decimal places as needed.) b) Identity the value of the margin of error E E- (Round to three decimal places as needed.) c) Construct the confidence interval (Round to three decimal places as needed) d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below. OA. One has 95% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion. OB. One has 95% confidence that the sample proportion is equal to the population proportion OC. There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound. OD. 95% of sample proportions will fall between the lower bound and the upper bound
Standard Normal (2) Distribution 2 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 00 5000 0 5398 5793 6179 6554 6915 7257 7580 Z Cumulative Area from the LEFT 01 03 5040 5120 5438 5517 5832 5910 6217 6293 6591 6664 6950 7019 7291 7611 02 5080 5478 5871 6255 6628 6985 POSITIVE Z Scores 7324 7642 7357 7673 04 5160 5557 5948 6331 6700 7054 7389 7704 05 5199 5596 5987 .6368 6736 7088 7422 7734 .06 5239 5636 6026 6406 6772 7123 7454 7764 07 5279 5675 6064 6443 6808 7157 7486 7794 08 5319 5714 6103 6480 6844 7190 7517 7823 09 5359 5753 6141 6517 6879 7224 7549 7852 2 0.0 eeeeesee 0.1 0.2 0.3 0.4 0.5 06 0.7
Standard Normal (2) Distribution 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 20 2.1 22 2.3 2.4 7881 8159 8413 8643 8849 9032 9192 9332 9452 9554 9641 9713 9772 9821 9861 9893 9918 7910 8186 8438 8665 8869 9049 9207 9345 9463 9564 9649 9719 9778 9826 9664 9896 9920 7939 8212 8461 8686 8888 9066 9222 9357 9474 9573 9656 9726 9783 9830 9868 9898 9922 7967 8238 8485 8708 8907 9082 9236 9370 9484 9582 9664 9732 9788 9834 9871 9901 9925 7995 8264 8508 8729 8925 9099 9251 9382 9495 . 9691 9671 9738 9793 9838 9875 9904 9927 8023 8289 .8531 8749 .8944 9115 9265 9394 9505 9599 9678 9744 9798 9842 9878 9906 9929 8051 8315 8554 8770 8962 9131 9279 9406 9515 9608 9686 9750 9603 9846 98681 9909 9931 8078 8340 8577 8790 8980 9147 9292 9418 9525 9616 9693 9756 9808 9850 9884 9911 9932 8106 8365 8599 8810 8997 9162 9306 9429 9535 9625 9699 9761 9812 9854 9887 9913 9934 8133 8389 8621 8830 9015 9177 9319 9441 9545 9633 9706 9767 9817 9857 9890 9916 9936 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 20 2.1 2.2 2.3 2.4
Standard Normal (z) Distribution 22 2.5 9938 9953 9965 9974 9981 9987 9990 9993 9995 9997 9999 .00 NOTE: For values of z above 3.49, use 0.9999 for the area. 26 2.7 2.8 2.9 3.0 3.1 32 3.3 3.4 3.50 and up zScore 9940 9955 Area 9966 9975 9982 9987 9991 9993 9995 9997 "Use these common values that result from interpolation: 9941 9956 9967 .9976 9982 9987 9991 9994 9995 9997 02 9943 9957 9968 9977 9963 9968 9991 9994 9996 9997 03 9945 9959 9969 9977 9964 9988 9992 9994 9996 9997 04 9946 9960 9970 9978 9984 9989 9992 9994 9996 9997 05 9948 9961 9971 9979 9985 9989 9992 9994 9996 9997 06 9949 9962 9972 9979 9985 9989 9992 9995 9996 9997 07 9951 9963 9973 0966 9986 9990 9993 95 9996 9997 08 06:0 9952 9964 9974 9981 0.95 9966 9990 9993 9995 9997 9998 Common Critical Values Confidence Level 60 Critical Value 1.645 1.96 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 34 3.50 and up
NOTE: For values of zabove 3.49, use 0.9999 for the area. "Use these common values that result from interpolation 2Score 1.645 2.575 Area 0.9500 0.9950 Common Critical Values Confidence Level 0.90 0.95 0.99 Critical Value 1.645 1.96 2.575
a research Institute poll asked respondents if they felt vulnerable to identify theft. In the poll, n=974 and x= 512 who said "yes." Used a 95% confidence level.
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Standard Normal (2) Distribution 2 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 00 5000 0 5398 5793 6179 6554 6915 7257 7580 Z Cumulative Area from the LEFT 01 03 5040 5120 5438 5517 5832 5910 6217 6293 6591 6664 6950 7019 7291 7611 02 5080 5478 5871 6255 6628 6985 POSITIVE Z Scores 7324 7642 7357 7673 04 5160 5557 5948 6331 6700 7054 7389 7704 05 5199 5596 5987 .6368 6736 7088 7422 7734 .06 5239 5636 6026 6406 6772 7123 7454 7764 07 5279 5675 6064 6443 6808 7157 7486 7794 08 5319 5714 6103 6480 6844 7190 7517 7823 09 5359 5753 6141 6517 6879 7224 7549 7852 2 0.0 eeeeesee 0.1 0.2 0.3 0.4 0.5 06 0.7
Standard Normal (2) Distribution 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 20 2.1 22 2.3 2.4 7881 8159 8413 8643 8849 9032 9192 9332 9452 9554 9641 9713 9772 9821 9861 9893 9918 7910 8186 8438 8665 8869 9049 9207 9345 9463 9564 9649 9719 9778 9826 9664 9896 9920 7939 8212 8461 8686 8888 9066 9222 9357 9474 9573 9656 9726 9783 9830 9868 9898 9922 7967 8238 8485 8708 8907 9082 9236 9370 9484 9582 9664 9732 9788 9834 9871 9901 9925 7995 8264 8508 8729 8925 9099 9251 9382 9495 . 9691 9671 9738 9793 9838 9875 9904 9927 8023 8289 .8531 8749 .8944 9115 9265 9394 9505 9599 9678 9744 9798 9842 9878 9906 9929 8051 8315 8554 8770 8962 9131 9279 9406 9515 9608 9686 9750 9603 9846 98681 9909 9931 8078 8340 8577 8790 8980 9147 9292 9418 9525 9616 9693 9756 9808 9850 9884 9911 9932 8106 8365 8599 8810 8997 9162 9306 9429 9535 9625 9699 9761 9812 9854 9887 9913 9934 8133 8389 8621 8830 9015 9177 9319 9441 9545 9633 9706 9767 9817 9857 9890 9916 9936 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 20 2.1 2.2 2.3 2.4
Standard Normal (z) Distribution 22 2.5 9938 9953 9965 9974 9981 9987 9990 9993 9995 9997 9999 .00 NOTE: For values of z above 3.49, use 0.9999 for the area. 26 2.7 2.8 2.9 3.0 3.1 32 3.3 3.4 3.50 and up zScore 9940 9955 Area 9966 9975 9982 9987 9991 9993 9995 9997 "Use these common values that result from interpolation: 9941 9956 9967 .9976 9982 9987 9991 9994 9995 9997 02 9943 9957 9968 9977 9963 9968 9991 9994 9996 9997 03 9945 9959 9969 9977 9964 9988 9992 9994 9996 9997 04 9946 9960 9970 9978 9984 9989 9992 9994 9996 9997 05 9948 9961 9971 9979 9985 9989 9992 9994 9996 9997 06 9949 9962 9972 9979 9985 9989 9992 9995 9996 9997 07 9951 9963 9973 0966 9986 9990 9993 95 9996 9997 08 06:0 9952 9964 9974 9981 0.95 9966 9990 9993 9995 9997 9998 Common Critical Values Confidence Level 60 Critical Value 1.645 1.96 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 34 3.50 and up
NOTE: For values of zabove 3.49, use 0.9999 for the area. "Use these common values that result from interpolation 2Score 1.645 2.575 Area 0.9500 0.9950 Common Critical Values Confidence Level 0.90 0.95 0.99 Critical Value 1.645 1.96 2.575