a survey of 1014 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfortably or not. Of the 1014 surveyed, 534 stated that they were worried about having enough money to live comfortably in tirement. Construct a 99% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement. ick here to view the standard normal distribution table (page 1)
a survey of 1014 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfortably or not. Of the 1014 surveyed, 534 stated that they were worried about having enough money to live comfortably in tirement. Construct a 99% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement. ick here to view the standard normal distribution table (page 1)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:A
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37 For values of z less than -3.49 use 0.000 to approximate the area
Z
C
0.01
0.0003
0.0005
0.0007
0.0009
D
0.02
0.0003
0.0005
E
0.03
0.0003
0.0004
0.0006
0.0013
0.0018
0.0025
H
|
J
0.06
0.07
0.08
0.0003 0.0003 0.0003
0.0004 0.0004 0.0004
0.0006 0.0005 0.0005
0.0008 0.0007
0.0011
0.001
0.0015 0.0014
0.0021
0.002
0.0028 0.0027
0.0038 0.0037
0.0051 0.0049
0.0068 0.0066
0.0089 0.0087
0.0116 0.0113
0.0034
0.0033
F
G
0.04
0.05
0.0003 0.0003
0.0004 0.0004
0.0006 0.0006 0.0006
0.0009 0.0009 0.0008 0.0008 0.0008
0.0013 0.0012 0.0012 0.0011 0.0011
0.0018 0.0017 0.0016 0.0016 0.0015
0.0024 0.0023 0.0023 0.0022 0.0021
0.0032 0.0031
0.003 0.0029
0.0041
0.004 0.0039
0.0055 0.0054 0.0052
0.0073 0.0071 0.0069
0.0096 0.0094 0.0091
0.0125 0.0122 0.0119
0.0162 0.0158 0.0154 0.015
0.0207 0.0202 0.0197 0.0192
0.0268 0.0262 0.0256
0.025 0.0244
0.0336 0.0329 0.0322 0.0314 0.0307
0.0427 0.0418 0.0409 0.0401
0.0384
0.0526 0.0516 0.0505 0.0495
0.0643
0.063 0.0618
0.0778 0.0764 0.0749
0.0934
0.1112
0.0045 0.0044 0.0043
0.006 0.0059 0.0057
0.008 0.0078 0.0075
0.0102 0.0099
0.0132 0.0129
0.017 0.0166
0.0217 0.0212
0.0274
0.0344
0.0146
0.0188
0.0239
0.0301
0.0392
0.0485
0.0475
0.0375
0.0465
0.0571
0.0606
0.0594
0.0582
0.0708
0.0721
0.0735
0.0885
0.0694
30838
0.0869
0.0853
0.0918 0.0701
0.1093 0.1075
0.1056
0.1038
0.102
0.121
0.1292
0.1271
0.1251
0.123
0.1003
0.119
0.1401
0.1492
0.1469
0.1423
0.1446
0.1685
0.166
0.1635
0.1922
0.1894
0.1314
0.1539 0.1515
0.1788 0.1762 0.1736 0.1711
0.2061 0.2033 0.2005 0.1977 0.1949
0.2358 0.2327 0.2296 0.2266 0.2236
0.2676 0.2643 0.2611 0.2578 0.2546 0.2514
0.3015 0.2981 0.2947 0.2912 0.2877 0.2843
0.3372 0.3336
0.3745 0.3707
0.4129 0.409
0.4522 0.4483
0.2206 0.2177
0.2483
0.281
0.33 0.3264 0.3228
0.3669 0.3632 0.3594
0.4052
0.4443
0.3192 0.3156
0.3557 0.352
0.4013 0.3974 0.3936 0.3897
0.4404 0.4364 0.4325 0.4286
0.4761 0.4721 0.4681
0.492
0.488
0.484
0.4801
9
B
0
-3.4
0.0003
-3.3 0.0005
-3.2 0.0007
-3.1
0.001
-3 0.0013
-2.9 0.0019
-2.8 0.0026
-2.7
-2.6
0.0035
0.0047
-2.5
0.0062
-2.4
-2.3
-2.2
0.0139
-2.1 0.0179
0.0082
0.0107 0.0104
0.0136
0.0174
0.0228 0.0222
0.0287 0.0281
0.0359 0.0351
0.0436
-2
-1.9
-1.8
-1.7
0.0446
-1.6
0.0548 0.0537
-1.5
-1.4
0.0668 0.0655
0.0808 0.0793
0.0968 0.0951
-1.3
-1.2
0.1151 0.1131
-1.1 0.1357 0.1335
-1
-0.9
-0.8
-0.7
-0.6
-0.5
0.1587 0.1562
0.1841 0.1814
0.2119 0.2094
0.242 0.2389
0.2743 0.2709
0.3085 0.305
0.3446 0.3409
0.3821 0.3783
0.4207 0.4168
0.4602 0.4562
0.5 0.496
-0.4
-0.3
-0.2
-0.1
0
K
0.09
0.0002
0.0003
0.0005
0.0007
0.001
0.0014
0.0019
0.0026
0.0036
0.0048
0.0064
0.0084
0.011
0.0143
0.0182
0.0233
0.0294
0.0367
0.0455
0.0559
0.0681
0.0823
0.0985
0.117
0.1379
0.1611
0.1867
0.2148
0.2451
0.2776
0.3121
0.3483
0.3859
0.4247
0.4641
L
Transcribed Image Text:In a survey of 1014 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfortably or not. Of the 1014 surveyed, 534 stated that they were worried about having enough money to live comfortably in
retirement. Construct a 99% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
Click here to view the table of critical t-values.
Click here to view the table of critical values of the chi-square distribution.
Select the correct choice below and fill in the answer boxes to complete your choice.
(Use ascending order. Round to three decimal places as needed.)
O A. There is 99% confidence that the true proportion of worried adults is between
and
B.
99% of the population lies in the interval between
and
O C.
There is a 99% probability that the true proportion of worried adults is between
and
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