In a survey conducted by a reputable marketing agency, 223 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. Click here to view the standard normal distribution table (page 1), Click here to view the standard normal distribution table (page 2), (a) What is the sample in this study? What is the population finterest? Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The sample is all adults. O B. The sample is all adults 19 years of age or older. O C. The sample is the adults 19 years of age or older. (Type a whole number.) O D. The sample is all adults with a cell phone. Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The population is all adults 19 years of age or older. O B. The population is all adults with a cell phone. O C. The population is all adults. O D. The population is the adults 19 years of age or older. (Type a whole number.) (b) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is V This variable is V because (c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. (Round three decimal places as needed.)

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6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Standard Normal Distribution Table (page 1)
i
Standard Normal Distribution Table (page 2)
Area
Area
Standard Normal Distribution
Standard Normal 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
0.0003
0.0005
0.0006
0.0009
0.0013
0.5199
0.5596
0.5987
0.5359
0.5753
0.6141
0.0003
0.0005
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
-3.4
-3.3
-3.2
-3.1
-3.0
0.0003
0.0004
0.0005
0.0003
0.0004
0.0002
0.0003
0.0005
0.5000
0.5398
0.5793
0.5120
0.5517
0.5910
0.5160
0.5557
0.5948
0.5239
0.5636
0.6026
0.5319
0.5714
0.6103
0.0003
0.0005
0.0003
0.0004
0.0006
0.0
0.5040
0.5438
0.5832
0.5080
0.5478
0.5871
0.6255
0.6628
0.5279
0.5675
0.6064
0.6443
0.6808
0.1
0.2
0.0004
0.0007
0.0007
0.0006
0.0005
0.6368
0.6736
0.6517
0.6879
0.0009
0.0008
0.0008
0.0011
0.0008
0.0011
0.0007
0.0010
0.0007
0.0010
0.0013
0.0009
0.0012
0.0008
0.0011
0.3
0.4
0.6217
0.6591
0.6179
0.6293
0.6664
0.6331
0.6700
0.6406
0.6772
0.6480
0.6844
0.0013
0.0012
0.0010
0.6554
-29
-2.8
-2.7
0.0019
0.0026
0.0035
0.0018
0.0025
0.0034
0.0045
0.0018
0.0024
0.0033
0.0017
0.0023
0.0032
0.0016
0.0023
0.0031
0.0016
0.0022
0.0030
0.0015
0.0021
0.0029
0.0015
0.0021
0.0028
0.0014
0.0020
0.0027
0.0014
0.0019
0.0026
0.0036
0.0048
0.6915
0.7257
0.7580
0.7881
0.8159
0.6950
0.7291
0.7611
0.6985
0.7324
0.7642
0.7939
0.8212
0.7019
0.7357
0.7673
0.7967
0.7054
0.7389
0.7704
0.7088
0.7422
0.7734
0.7123
0.7454
0.7764
0.8051
0.8315
0.7157
0.7486
0.7794
0.7190
0.7517
0.7823
0.7224
0.7549
0.7852
0.8133
0.8389
0.5
0.6
0.7
-2.6
-2.5
0.0047
0.0062
0.0040
0.0054
0.0039
0.0052
0.0037
0.0049
0.7995
0.8264
0.8023
0.8289
0.8078
0.8340
0.8106
0.8365
0.0044
0.0043
0.0041
0.0038
0.0051
0.8
0.7910
0.0060
0.0059
0.0057
0.0055
0.9
0.8186
0.8238
-2.4
-2.3
-2.2
0.0082
0.0107
0.0139
0.0080
0.0104
0.0136
0.0078
0.0102
0.0132
0.0075
0.0099
0.0129
0.0073
0.0096
0.0125
0.0071
0.0094
0.0122
0.0069
0.0091
0.0119
0.0068
0.0089
0.0116
0.0066
0.0087
0.0064
0.0084
1.0
1.1
1.2
0.8413
0.8643
0.8849
0.8438
0.8665
0.8869
0.8461
0.8686
0.8888
0.8485
0.8708
0.8907
0.8508
0.8729
0.8925
0.8531
0.8749
0.8944
0.9115
0.9265
0.8554
0.8770
0.8962
0.8577
0.8790
0.8599
0.8810
0.8997
0.8621
0.8830
0.9015
0.0113
0.0110
0.8980
-2.1
-2.0
0.0170
0.0217
0.0162
0.0207
0.0158
0.0202
0.0154
0.0197
0.9066
0.9222
0.9162
0.9306
0.0150
0.0179
0.0228
0.0174
0.0222
0.0166
0.0212
0.0146
0.0188
0.0143
0.0183
1.3
1.4
0.9032
0.9192
0.9049
0.9207
0.9082
0.9236
0.9147
0.9292
0.9177
0.9319
0.9099
0.9131
0.0192
0.9251
0.9279
0.0287
0.0359
0.0446
0.0256
0.0322
0.0401
0.0495
0.0606
0.9357
0.9474
0.9573
0.9656
0.9726
0.9394
0.9505
0.9599
0.9441
0.9545
0.9633
0.9706
0.0281
0.0351
0.0268
0.0336
0.0418
0.0516
0.0630
0.0250
-1.9
-1.8
-1.7
0.0274
0.0344
0.0427
0.0526
0.0643
0.0262
0.0329
0.0409
0.0505
0.0618
0.0244
0.0307
0.0384
0.0239
0.0301
0.0375
0.0465
0.0571
0.0233
0.0294
0.0367
1.5
1.6
1.7
1.8
1.9
0.9332
0.9452
0.9554
0.9641
0.9713
0.9345
0.9463
0.9564
0.9370
0.9484
0.9582
0.9664
0.9732
0.9382
0.9495
0.9591
0.9406
0.9515
0.9608
0.9418
0.9525
0.9616
0.9429
0.9535
0.9625
0.0314
0.0436
0.0392
0.0548
0.0668
0.0537
0.0655
0.0485
0.0594
0.9671
0.9738
0.9693
0.9756
-1.6
0.0475
0.0582
0.0455
0.0559
0.9649
0.9678
0.9744
0.9686
0.9750
0.9699
0.9761
-1.5
0.9719
0.9767
-1.4
-1.3
-1.2
0.0808
0.0968
0.1151
0.0793
0.0951
0.1131
0.1335
0.1562
0.0778
0.0934
0.1112
0.1314
0.1539
0.0764
0.0918
0.1093
0.0749
0.0901
0.1075
0.0735
0.0885
0.1056
0.0721
0.0869
0.1038
0.0708
0.0853
0.1020
0.0694
0.0838
0.1003
0.0681
0.0823
0.0985
2.0
2.1
2.2
0.9772
0.9821
0.9861
0.9778
0.9826
0.9864
0.9783
0.9830
0.9868
0.9788
0.9834
0.9871
0.9793
0.9838
0.9875
0.9798
0.9842
0.9878
0.9803
0.9846
0.9881
0.9808
0.9850
0.9884
0.9812
0.9854
0.9887
0.9817
0.9857
0.9890
0.1292
0.1515
0.1251
0.1469
0.1210
0.1423
0.1170
0.1379
0.9906
0.9929
0.9893
-1.1
-1.0
0.1357
0.1587
0.1271
0.1492
0.1230
0.1446
0.1190
0.1401
2.3
2.4
0.9896
0.9920
0.9898
0.9922
0.9901
0.9925
0.9904
0.9927
0.9909
0.9931
0.9911
0.9932
0.9913
0.9934
0.9916
0.9918
0.9936
-0.9
0.1841
0.1814
0.1788
0.1762
0.1736
0.1711
0.1685
0.1660
0.1635
0.1611
2.5
0.9938
0.9940
0.9941
0.9943
0.9945
0.9946
0.9948
0.9949
0.9951
0.9952
A004
Transcribed Image Text:Standard Normal Distribution Table (page 1) i Standard Normal Distribution Table (page 2) Area Area Standard Normal Distribution Standard Normal 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 0.0003 0.0005 0.0006 0.0009 0.0013 0.5199 0.5596 0.5987 0.5359 0.5753 0.6141 0.0003 0.0005 0.0003 0.0004 0.0006 0.0003 0.0004 0.0006 0.0003 -3.4 -3.3 -3.2 -3.1 -3.0 0.0003 0.0004 0.0005 0.0003 0.0004 0.0002 0.0003 0.0005 0.5000 0.5398 0.5793 0.5120 0.5517 0.5910 0.5160 0.5557 0.5948 0.5239 0.5636 0.6026 0.5319 0.5714 0.6103 0.0003 0.0005 0.0003 0.0004 0.0006 0.0 0.5040 0.5438 0.5832 0.5080 0.5478 0.5871 0.6255 0.6628 0.5279 0.5675 0.6064 0.6443 0.6808 0.1 0.2 0.0004 0.0007 0.0007 0.0006 0.0005 0.6368 0.6736 0.6517 0.6879 0.0009 0.0008 0.0008 0.0011 0.0008 0.0011 0.0007 0.0010 0.0007 0.0010 0.0013 0.0009 0.0012 0.0008 0.0011 0.3 0.4 0.6217 0.6591 0.6179 0.6293 0.6664 0.6331 0.6700 0.6406 0.6772 0.6480 0.6844 0.0013 0.0012 0.0010 0.6554 -29 -2.8 -2.7 0.0019 0.0026 0.0035 0.0018 0.0025 0.0034 0.0045 0.0018 0.0024 0.0033 0.0017 0.0023 0.0032 0.0016 0.0023 0.0031 0.0016 0.0022 0.0030 0.0015 0.0021 0.0029 0.0015 0.0021 0.0028 0.0014 0.0020 0.0027 0.0014 0.0019 0.0026 0.0036 0.0048 0.6915 0.7257 0.7580 0.7881 0.8159 0.6950 0.7291 0.7611 0.6985 0.7324 0.7642 0.7939 0.8212 0.7019 0.7357 0.7673 0.7967 0.7054 0.7389 0.7704 0.7088 0.7422 0.7734 0.7123 0.7454 0.7764 0.8051 0.8315 0.7157 0.7486 0.7794 0.7190 0.7517 0.7823 0.7224 0.7549 0.7852 0.8133 0.8389 0.5 0.6 0.7 -2.6 -2.5 0.0047 0.0062 0.0040 0.0054 0.0039 0.0052 0.0037 0.0049 0.7995 0.8264 0.8023 0.8289 0.8078 0.8340 0.8106 0.8365 0.0044 0.0043 0.0041 0.0038 0.0051 0.8 0.7910 0.0060 0.0059 0.0057 0.0055 0.9 0.8186 0.8238 -2.4 -2.3 -2.2 0.0082 0.0107 0.0139 0.0080 0.0104 0.0136 0.0078 0.0102 0.0132 0.0075 0.0099 0.0129 0.0073 0.0096 0.0125 0.0071 0.0094 0.0122 0.0069 0.0091 0.0119 0.0068 0.0089 0.0116 0.0066 0.0087 0.0064 0.0084 1.0 1.1 1.2 0.8413 0.8643 0.8849 0.8438 0.8665 0.8869 0.8461 0.8686 0.8888 0.8485 0.8708 0.8907 0.8508 0.8729 0.8925 0.8531 0.8749 0.8944 0.9115 0.9265 0.8554 0.8770 0.8962 0.8577 0.8790 0.8599 0.8810 0.8997 0.8621 0.8830 0.9015 0.0113 0.0110 0.8980 -2.1 -2.0 0.0170 0.0217 0.0162 0.0207 0.0158 0.0202 0.0154 0.0197 0.9066 0.9222 0.9162 0.9306 0.0150 0.0179 0.0228 0.0174 0.0222 0.0166 0.0212 0.0146 0.0188 0.0143 0.0183 1.3 1.4 0.9032 0.9192 0.9049 0.9207 0.9082 0.9236 0.9147 0.9292 0.9177 0.9319 0.9099 0.9131 0.0192 0.9251 0.9279 0.0287 0.0359 0.0446 0.0256 0.0322 0.0401 0.0495 0.0606 0.9357 0.9474 0.9573 0.9656 0.9726 0.9394 0.9505 0.9599 0.9441 0.9545 0.9633 0.9706 0.0281 0.0351 0.0268 0.0336 0.0418 0.0516 0.0630 0.0250 -1.9 -1.8 -1.7 0.0274 0.0344 0.0427 0.0526 0.0643 0.0262 0.0329 0.0409 0.0505 0.0618 0.0244 0.0307 0.0384 0.0239 0.0301 0.0375 0.0465 0.0571 0.0233 0.0294 0.0367 1.5 1.6 1.7 1.8 1.9 0.9332 0.9452 0.9554 0.9641 0.9713 0.9345 0.9463 0.9564 0.9370 0.9484 0.9582 0.9664 0.9732 0.9382 0.9495 0.9591 0.9406 0.9515 0.9608 0.9418 0.9525 0.9616 0.9429 0.9535 0.9625 0.0314 0.0436 0.0392 0.0548 0.0668 0.0537 0.0655 0.0485 0.0594 0.9671 0.9738 0.9693 0.9756 -1.6 0.0475 0.0582 0.0455 0.0559 0.9649 0.9678 0.9744 0.9686 0.9750 0.9699 0.9761 -1.5 0.9719 0.9767 -1.4 -1.3 -1.2 0.0808 0.0968 0.1151 0.0793 0.0951 0.1131 0.1335 0.1562 0.0778 0.0934 0.1112 0.1314 0.1539 0.0764 0.0918 0.1093 0.0749 0.0901 0.1075 0.0735 0.0885 0.1056 0.0721 0.0869 0.1038 0.0708 0.0853 0.1020 0.0694 0.0838 0.1003 0.0681 0.0823 0.0985 2.0 2.1 2.2 0.9772 0.9821 0.9861 0.9778 0.9826 0.9864 0.9783 0.9830 0.9868 0.9788 0.9834 0.9871 0.9793 0.9838 0.9875 0.9798 0.9842 0.9878 0.9803 0.9846 0.9881 0.9808 0.9850 0.9884 0.9812 0.9854 0.9887 0.9817 0.9857 0.9890 0.1292 0.1515 0.1251 0.1469 0.1210 0.1423 0.1170 0.1379 0.9906 0.9929 0.9893 -1.1 -1.0 0.1357 0.1587 0.1271 0.1492 0.1230 0.1446 0.1190 0.1401 2.3 2.4 0.9896 0.9920 0.9898 0.9922 0.9901 0.9925 0.9904 0.9927 0.9909 0.9931 0.9911 0.9932 0.9913 0.9934 0.9916 0.9918 0.9936 -0.9 0.1841 0.1814 0.1788 0.1762 0.1736 0.1711 0.1685 0.1660 0.1635 0.1611 2.5 0.9938 0.9940 0.9941 0.9943 0.9945 0.9946 0.9948 0.9949 0.9951 0.9952 A004
In a survey conducted by a reputable marketing agency, 223 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete
parts (a) through (f) below.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) What is the sample in this study? What is the population of interest?
Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice.
A. The sample is all adults.
B. The sample is all adults 19 years of age or older.
O C. The sample is the
adults 19 years of age or older.
(Type a whole number.)
D. The sample is all adults with a cell phone.
Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice.
A. The population is all adults 19 years of age or older.
B. The population is all adults with a cell phone.
C. The population is all adults.
D. The population is the
adults 19 years of age or older.
(Type a whole number.)
(b) What is the variable of interest in this study? Is it qualitative or quantitative?
The variable of interest is
This variable is
because
(c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom.
%D
(Round to three decimal places as needed.)
Transcribed Image Text:In a survey conducted by a reputable marketing agency, 223 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the sample in this study? What is the population of interest? Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The sample is all adults. B. The sample is all adults 19 years of age or older. O C. The sample is the adults 19 years of age or older. (Type a whole number.) D. The sample is all adults with a cell phone. Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The population is all adults 19 years of age or older. B. The population is all adults with a cell phone. C. The population is all adults. D. The population is the adults 19 years of age or older. (Type a whole number.) (b) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is This variable is because (c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. %D (Round to three decimal places as needed.)
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