Use the sample data and confidence level given below to complete parts (a) through (d).  A research insitute poll asked respondents if they felt vulnerbale to identity theft. In the poll, n=903 and x=590 who said "yes." Use 95% confidence level.  a. find the best point of the population proportion p. (Round to three decimal places as needed.) b. Identity the value of the margin of error E. E =  c. Construct the confidence level interval.  ___ < p < ___ d. Write a statement that correctly interprets the confidence interval. Choose to correct Below  A. One has 95% confidence that the sample proportion is equal to the population proportion.  B. 95% of sample porportions will fall between the lower bound and upper bound. C. One has 95% confidence that the interval from the lower bound to the bound actually does contain the true value of the popuklation porportion.  D. There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Use the sample data and confidence level given below to complete parts (a) through (d). 

A research insitute poll asked respondents if they felt vulnerbale to identity theft. In the poll, n=903 and x=590 who said "yes." Use 95% confidence level. 

a. find the best point of the population proportion p. (Round to three decimal places as needed.)

b. Identity the value of the margin of error E.

E = 

c. Construct the confidence level interval. 

___ < p < ___

d. Write a statement that correctly interprets the confidence interval. Choose to correct Below 

A. One has 95% confidence that the sample proportion is equal to the population proportion. 

B. 95% of sample porportions will fall between the lower bound and upper bound.

C. One has 95% confidence that the interval from the lower bound to the bound actually does contain the true value of the popuklation porportion. 

D. There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound. 

1/31/2021
Standard Normal (z) Distribution
POSITIVE z Scores
Standard Normal (z) Distribution: Cumulative Area from the LEFT
.00
.01
.02
.03
04
.05
.06
.07
08
.09
0.0
.5000
.5040
.5080
.5120
.5160
.5199
.5239
.5279
.5319
.5359
0.0
0.1
.5398
.5438
.5478
.5517
.5557
.5596
.5636
.5675
.5714
.5753
0.1
0.2
.5793
.5832
.5871
.5910
.5948
.5987
.6026
.6064
.6103
.6141
0.2
0.3
.6179
.6217
.6255
.6293
.6331
.6368
.6406
.6443
.6480
.6517
0.3
0.4
.6554
.6591
.6628
.6664
.6700
.6736
.6772
.6808
.6844
.6879
0.4
0.5
.6915
.6960
.6985
7019
7054
.7088
.7123
.7157
.7190
.7224
0,5
0.6
.7257
.7291
7324
7357
7389
.7422
.7454
.7486
.7517
.7549
0.6
0.7
.7580
.7611
.7642
7673
7704
7734
.7764
.7794
.7823
.7852
0.7
0.8
.7881
.7910
.7939
7967
7995
8023
.8061
.8078
.8106
.8133
0.8
0.9
8159
8186
8212
.8238
8264
8289
.8315
.8340
.8365
.8389
0.9
1.0
8413
8438
8461
8485
8508
.8531
8554
.8577
8599
.8621
1.0
1.1
8643
8665
.8686
.8708
8729
8749
.8770
.8790
.8810
.8830
1.1
1.2
8849
.8869
.8888
.8907
8925
.8944
.8962
.8980
.8997
.9015
1.2
1.3
9032
9049
.9066
.9082
9099
.9115
.9131
.9147
.9162
.9177
1.3
1.4
.9192
9207
.9222
.9236
9251
9265
.9279
.9292
.9306
.9319
1.4
1.5
.9332
.9345
.9357
.9370
9382
9394
9406
.9418
9429
.9441
1.5
1.6
9452
9463
9474
.9484
.9495
.9505
.9515
.9525
.9535
.9545
1.6
1.7
9554
9564
.9573
.9582
.9591
.9599
.9608
9616
9625
.9633
1.7
1.8
.9641
.9649
.9656
.9664
.9671
.9678
.9686
.9693
.9699
.9706
1.8
1.9
9713
9719
.9726
.9732
.9738
.9744
.9750
.9756
.9761
.9767
1.9
2.0
.9772
.9778
.9783
.9788
.9793
.9798
.9803
.9808
.9812
.9817
2.0
2.1
.9821
.9826
.9830
.9834
.9838
.9842
.9846
.9850
.9854
.9857
2.1
2.2
.9861
.9864
.9868
.9871
.9875
.9878
.9881
.9884
.9887
.9890
2.2
2.3
9893
9896
9898
.9901
9904
.9906
,9909
.9911
.9913
.9916
2.3
2.4
9918
9920
.9922
.9925
.9927
.9929
.9931
.9932
.9934
.9936
2.4
2.5
.9938
9940
9941
.9943
9945
9946
.9948
.9949
.9951
.9952
2.5
2.6
9963
9965
.9956
.9957
.9959
.9960
.9961
9962
.9963
.9964
2.6
2.7
9965
.9966
.9967
.9968
.9969
.9970
.9971
.9972
.9973
.9974
2.7
2.8
9974
.9975
.9976
.9977
.9977
.9978
.9979
.9979
.9980
.9981
2.8
2.9
.9981
9982
.9982
.9983
.9984
.9984
.9985
.9985
.9986
.9986
2.9
3.0
.9987
.9987
.9987
.9988
.9988
.9989
.9989
.9989
.9990
.9990
3.0
3.1
.9990
.9991
9991
.9991
.9992
.9992
.9992
.9992
.9993
.9993
3.1
3.2
.9993
.9993
.9994
.9994
.9994
.9994
9994
.9995
9995
9995
3.2
3.3
9995
9995
.9995
9996
9996
.9996
.9996
.9996
.9996
.9997
3.3
3.4
.9997
.9997
.9997
.9997
9997
.9997
,9997
.9997
.9997
.9998
3.4
3.50. and up
9999
3.50. and up
.00
05
.01
.02
03
.04
.06
.07
.08
.09
Standard Normal (z) Distribution: Cumulative Area from the LEFT
Transcribed Image Text:1/31/2021 Standard Normal (z) Distribution POSITIVE z Scores Standard Normal (z) Distribution: Cumulative Area from the LEFT .00 .01 .02 .03 04 .05 .06 .07 08 .09 0.0 .5000 .5040 .5080 .5120 .5160 .5199 .5239 .5279 .5319 .5359 0.0 0.1 .5398 .5438 .5478 .5517 .5557 .5596 .5636 .5675 .5714 .5753 0.1 0.2 .5793 .5832 .5871 .5910 .5948 .5987 .6026 .6064 .6103 .6141 0.2 0.3 .6179 .6217 .6255 .6293 .6331 .6368 .6406 .6443 .6480 .6517 0.3 0.4 .6554 .6591 .6628 .6664 .6700 .6736 .6772 .6808 .6844 .6879 0.4 0.5 .6915 .6960 .6985 7019 7054 .7088 .7123 .7157 .7190 .7224 0,5 0.6 .7257 .7291 7324 7357 7389 .7422 .7454 .7486 .7517 .7549 0.6 0.7 .7580 .7611 .7642 7673 7704 7734 .7764 .7794 .7823 .7852 0.7 0.8 .7881 .7910 .7939 7967 7995 8023 .8061 .8078 .8106 .8133 0.8 0.9 8159 8186 8212 .8238 8264 8289 .8315 .8340 .8365 .8389 0.9 1.0 8413 8438 8461 8485 8508 .8531 8554 .8577 8599 .8621 1.0 1.1 8643 8665 .8686 .8708 8729 8749 .8770 .8790 .8810 .8830 1.1 1.2 8849 .8869 .8888 .8907 8925 .8944 .8962 .8980 .8997 .9015 1.2 1.3 9032 9049 .9066 .9082 9099 .9115 .9131 .9147 .9162 .9177 1.3 1.4 .9192 9207 .9222 .9236 9251 9265 .9279 .9292 .9306 .9319 1.4 1.5 .9332 .9345 .9357 .9370 9382 9394 9406 .9418 9429 .9441 1.5 1.6 9452 9463 9474 .9484 .9495 .9505 .9515 .9525 .9535 .9545 1.6 1.7 9554 9564 .9573 .9582 .9591 .9599 .9608 9616 9625 .9633 1.7 1.8 .9641 .9649 .9656 .9664 .9671 .9678 .9686 .9693 .9699 .9706 1.8 1.9 9713 9719 .9726 .9732 .9738 .9744 .9750 .9756 .9761 .9767 1.9 2.0 .9772 .9778 .9783 .9788 .9793 .9798 .9803 .9808 .9812 .9817 2.0 2.1 .9821 .9826 .9830 .9834 .9838 .9842 .9846 .9850 .9854 .9857 2.1 2.2 .9861 .9864 .9868 .9871 .9875 .9878 .9881 .9884 .9887 .9890 2.2 2.3 9893 9896 9898 .9901 9904 .9906 ,9909 .9911 .9913 .9916 2.3 2.4 9918 9920 .9922 .9925 .9927 .9929 .9931 .9932 .9934 .9936 2.4 2.5 .9938 9940 9941 .9943 9945 9946 .9948 .9949 .9951 .9952 2.5 2.6 9963 9965 .9956 .9957 .9959 .9960 .9961 9962 .9963 .9964 2.6 2.7 9965 .9966 .9967 .9968 .9969 .9970 .9971 .9972 .9973 .9974 2.7 2.8 9974 .9975 .9976 .9977 .9977 .9978 .9979 .9979 .9980 .9981 2.8 2.9 .9981 9982 .9982 .9983 .9984 .9984 .9985 .9985 .9986 .9986 2.9 3.0 .9987 .9987 .9987 .9988 .9988 .9989 .9989 .9989 .9990 .9990 3.0 3.1 .9990 .9991 9991 .9991 .9992 .9992 .9992 .9992 .9993 .9993 3.1 3.2 .9993 .9993 .9994 .9994 .9994 .9994 9994 .9995 9995 9995 3.2 3.3 9995 9995 .9995 9996 9996 .9996 .9996 .9996 .9996 .9997 3.3 3.4 .9997 .9997 .9997 .9997 9997 .9997 ,9997 .9997 .9997 .9998 3.4 3.50. and up 9999 3.50. and up .00 05 .01 .02 03 .04 .06 .07 .08 .09 Standard Normal (z) Distribution: Cumulative Area from the LEFT
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