A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 993 and x = 566 who said "yes." Use a 99% confidence le Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.570 (Round to three decimal places as needed.)

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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Related questions
Question
Z
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
24
25
2.6
27
28
2.9
3.0
3.1
3.2
3.3
3.4
3.50 and up
z
.00
5000
5398
5793
6179
6554
6915
7257
7580
7881
8159
8413
.8643
8849
z Score
1.645
2.575
0
9032
9192
9332
9452
9554
9641
9713
9772
9821
9861
9893
9918
9938
9953
9965
9974
9981
9987
9990
9993
9995
9997
9999
.00
Z
Area
0.9500
0.9950
Cumulative Area from the LEFT
.01
5040
5438
5832
6217
6591
6950
7291
7611
7910
8186
8438
8665
.8869
9049
9207
9345
9463
9564
9649
9719
9778
9826
9864
9896
9920
9940
.9955
9966
9975
9982
9987
9991
9993
9995
9997
01
.02
5080
5478
5871
.6255
6628
.6985
.7324
.7642
.7939
8212
8461
8686
8888
9066
9222
9357
9474
9573
9656
9726
9783
9830
9868
9898
9922
.9941
9956
9967
9976
9982
NOTE: For values of zabove 3.49, use 0.9999 for the area.
"Use these common values that result from interpolation:
9987
9991
9994
9995
9997
POSITIVE z Scores
02
03
5120
5517
5910
6293
.6664
.7019
7357
7673
7967
8238
8485
8708
8907
9082
9236
9370
9484
9582
9664
9732
9788
9834
9871
9901
9925
9943
9957
9968
9977
9983
9988
9991
9994
9996
9997
03
.04
5160
5557
5948
.6331
6700
7054
7389
7704
.7995
8264
8508
8729
8925
9099
9251
9382
9495
9591
.9671
9738
9793
9838
9875
9904
9927
9945
9959
9969
9977
9984
9988
9992
9994
.9996
9997
04
MacBook Pro
.05
5199
5596
5987
.6368
.6736
.7088
.7422
.7734
8023
8289
.8531
.8749
.8944
9115
9265
9394
9505
9599
9678
9744
9798
9842
9878
9906
9929
.9946
9960
.9970
9978
.9984
9989
9992
9994
.9996
.9997
05
.06
5239
5636
.6026
.6406
.6772
.7123
.7454
7764
.8051
8315
.8554
.8770
8962
9131
9279
9406
9515
.9608
.9686
9750
.9803
.9846
.9881
.9909
.9931
.9948
.9961
.9971
.9979
9985
9989
9992
9994
9996
.9997
.06
.07
5279
5675
6064
6443
6808
.7157
7486
.7794
.8078
8340
8577
8790
8980
.9147
.9292
9418
.9525
.9616
9693
.9756
.9808
.9850
.9884
.9911
.9932
9949
9962
.9972
9979
9985
.9989
9992
9995
9996
9997
07
.
.08
5319
5714
6103
6480
6844
7190
7517
7823
8106
8365
8599
8810
.8997
9162
9306
9429
9535
9625
.9699
9761
9812
9854
9887
9913
9934
9951
9963
9973
9980
9986
9990
9993
9995
9996
9997
.08
.09
5359
5753
6141
6517
6879
.7224
7549
7852
8133
8389
8621
8830
.9015
9177
9319
9441
9545
9633
9706
9767
9817
9857
9890
9916
.9936
9952
9964
9974
9981
.9986
9990
.9993
9995
9997
.9998
.09
Common Critical Values
Confidence Critical
Level
Value
0.90
0.95
0.99
1.645
1.96
2.575
Z
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
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
24
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.50 and up
2
Transcribed Image Text:Z 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 24 25 2.6 27 28 2.9 3.0 3.1 3.2 3.3 3.4 3.50 and up z .00 5000 5398 5793 6179 6554 6915 7257 7580 7881 8159 8413 .8643 8849 z Score 1.645 2.575 0 9032 9192 9332 9452 9554 9641 9713 9772 9821 9861 9893 9918 9938 9953 9965 9974 9981 9987 9990 9993 9995 9997 9999 .00 Z Area 0.9500 0.9950 Cumulative Area from the LEFT .01 5040 5438 5832 6217 6591 6950 7291 7611 7910 8186 8438 8665 .8869 9049 9207 9345 9463 9564 9649 9719 9778 9826 9864 9896 9920 9940 .9955 9966 9975 9982 9987 9991 9993 9995 9997 01 .02 5080 5478 5871 .6255 6628 .6985 .7324 .7642 .7939 8212 8461 8686 8888 9066 9222 9357 9474 9573 9656 9726 9783 9830 9868 9898 9922 .9941 9956 9967 9976 9982 NOTE: For values of zabove 3.49, use 0.9999 for the area. "Use these common values that result from interpolation: 9987 9991 9994 9995 9997 POSITIVE z Scores 02 03 5120 5517 5910 6293 .6664 .7019 7357 7673 7967 8238 8485 8708 8907 9082 9236 9370 9484 9582 9664 9732 9788 9834 9871 9901 9925 9943 9957 9968 9977 9983 9988 9991 9994 9996 9997 03 .04 5160 5557 5948 .6331 6700 7054 7389 7704 .7995 8264 8508 8729 8925 9099 9251 9382 9495 9591 .9671 9738 9793 9838 9875 9904 9927 9945 9959 9969 9977 9984 9988 9992 9994 .9996 9997 04 MacBook Pro .05 5199 5596 5987 .6368 .6736 .7088 .7422 .7734 8023 8289 .8531 .8749 .8944 9115 9265 9394 9505 9599 9678 9744 9798 9842 9878 9906 9929 .9946 9960 .9970 9978 .9984 9989 9992 9994 .9996 .9997 05 .06 5239 5636 .6026 .6406 .6772 .7123 .7454 7764 .8051 8315 .8554 .8770 8962 9131 9279 9406 9515 .9608 .9686 9750 .9803 .9846 .9881 .9909 .9931 .9948 .9961 .9971 .9979 9985 9989 9992 9994 9996 .9997 .06 .07 5279 5675 6064 6443 6808 .7157 7486 .7794 .8078 8340 8577 8790 8980 .9147 .9292 9418 .9525 .9616 9693 .9756 .9808 .9850 .9884 .9911 .9932 9949 9962 .9972 9979 9985 .9989 9992 9995 9996 9997 07 . .08 5319 5714 6103 6480 6844 7190 7517 7823 8106 8365 8599 8810 .8997 9162 9306 9429 9535 9625 .9699 9761 9812 9854 9887 9913 9934 9951 9963 9973 9980 9986 9990 9993 9995 9996 9997 .08 .09 5359 5753 6141 6517 6879 .7224 7549 7852 8133 8389 8621 8830 .9015 9177 9319 9441 9545 9633 9706 9767 9817 9857 9890 9916 .9936 9952 9964 9974 9981 .9986 9990 .9993 9995 9997 .9998 .09 Common Critical Values Confidence Critical Level Value 0.90 0.95 0.99 1.645 1.96 2.575 Z 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 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 24 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.50 and up 2
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 = 993 and x = 566 who said "yes." Use a 99% confidence level.
Click the icon to view a table of z scores.
a) Find the best point estimate of the population proportion p.
0.570
(Round to three decimal places as needed.)
b) Identify the value of the margin of error E.
E=0
(Round to three decimal places as needed.)
Transcribed Image Text: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 = 993 and x = 566 who said "yes." Use a 99% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.570 (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E=0 (Round to three decimal places as needed.)
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