A survey of 2287 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 425 have donated blood in the past two years. Complete parts (a) through (c) below. Click here to view the standard normal distribution table (page 1), Click here to view the standard normal distribution table (page 2). (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years. p=0 (Round to three decimal places as needed.). (b) Verify that the requirements for constructing a confidence interval about p are satisfied. The sample a simple random sample, the value of is, which is 10, and the less than or equal to 5% of the (Round to three decimal places as needed.) (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded three decimal places as needed. Use ascending order.) OA. There is a OB. We are % confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years i between % probability the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between and and
A survey of 2287 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 425 have donated blood in the past two years. Complete parts (a) through (c) below. Click here to view the standard normal distribution table (page 1), Click here to view the standard normal distribution table (page 2). (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years. p=0 (Round to three decimal places as needed.). (b) Verify that the requirements for constructing a confidence interval about p are satisfied. The sample a simple random sample, the value of is, which is 10, and the less than or equal to 5% of the (Round to three decimal places as needed.) (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded three decimal places as needed. Use ascending order.) OA. There is a OB. We are % confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years i between % probability the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between and and
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
![For values of z less than -3.49 use 0.000 to approximate the area
0
0.01
0.08
0.0003
0.09
0.0002
-3.4
-3.3
-3.2
0.0003
0.0005
0.02
0.0003 0.0003
0.0005 0.0005
0.0007 0.0006
0.0009 0.0009
0.0013 0.0013
0.0018 0.0018
0.0025
0.0003
0.0005
0.0007
-3.1
0.001
-3 0.0013
-2.9 0.0019
-2.8 0.0026
-2.7 0.0035
-2.6 0.0047
-2.5 0.0062
-2.4 0.0082
0.03
0.04
0.0003 0.0003
0.0004 0.0004
0.0006 0.0006
0.0009 0.0008
0.0012 0.0012
0.0017 0.0016
0.0023
0.0032
0.0007
0.001
0.0014
0.0024
0.07
0.0003
0.0004 0.0004
0.0005 0.0005
0.0008 0.0007
0.0011
0.001
0.0015 0.0014
0.0021
0.0028
0.0038
0.0051
0.0068
0.0089
0.0116
0.015
0.0192
0.0019
0.0026
0.0033
0.0044
0.0059
0.0034
0.0045
0.006
0.008
0.0104
0.0136
0.0174
0.002
0.0027
0.0037
0.0049
0.0066
0.0087
0.0113
0.0146
0.0043
0.0057
0.0078 0.0075
0.0102 0.0099
0.0132 0.0129
0.017 0.0166
0.0217 0.0212
0.0055
0.0073
0.0096
0.0125
0.0162
0.0036
0.0048
0.0064
0.0084
0.011
0.0107
0.0139
0.0179
0.0228
0.0287
-2.3
-2.2
-2.1
-2
-1.9
-1.8
-1.7
0.0143
0.0222
0.0202
0.0182
0.0207
0.0262
0.0188
0.0239
0.0281
0.0274
0.0268
0.0256
0.0244
0.0233
0.0351
0.0344
0.0336
0.0329
0.0322
0.0294
0.05
0.06
0.0003 0.0003
0.0004 0.0004
0.0006 0.0006
0.0008 0.0008
0.0011 0.0011
0.0016 0.0015
0.0023 0.0022 0.0021
0.0031
0.003 0.0029
0.0041
0.004 0.0039
0.0054 0.0052
0.0071 0.0069
0.0094 0.0091
0.0122 0.0119
0.0158 0.0154
0.0197
0.025
0.0359
0.0314 0.0307 0.0301
0.0446 0.0436 0.0427 0.0418
0.0401 0.0392 0.0384 0.0375
-1.6 0.0548 0.0537 0.0526 0.0516 0.0505 0.0495 0.0485 0.0475 0.0465
-1.5 0.0668 0.0655 0.0643 0.063 0.0618 0.0606 0.0594 0.0582 0.0571
-1.4 0.0808 0.0793 0.0778 0.0764 0.0749 0.0735 0.0721 0.0708 0.0694
-1.3 0.0968 0.0951 0.0934 0.0918 0.0701
0.0885 0.0869 0.0853 30838
-1.2 0.1151 0.1131 0.1112 0.1093 0.1075 0.1056 0.1038 0.102
-1.1 0.1357 0.1335 0.1314 0.1292 0.1271 0.1251 0.123 0.121
-1 0.1587 0.1562 0.1539 0.1515 0.1492 0.1469 0.1446 0.1423 0.1401
-0.9 0.1841 0.1814 0.1788 0.1762 0.1736 0.1711 0.1685 0.166 0.1635 0.1611
-0.8 0.2119 0.2094 0.2061 0.2033 0.2005 0.1977 0.1949 0.1922 0.1894 0.1867
-0.7 0.242 0.2389 0.2358 0.2327 0.2296 0.2266 0.2236 0.2206 0.2177 0.2148
-0.6 0.2743 0.2709 0.2676 0.2643 0.2611 0.2578 0.2546 0.2514 0.2483 0.2451
-0.5 0.3085
0.305 0.3015 0.2981 0.2947 0.2912 0.2877 0.2843 0.281 0.2776
-0.4 0.3446 0.3409 0.3372 0.3336
0.3228 0.3192 0.3156 0.3121
-0.3 0.3821 0.3783 0.3745 0.3707
0.3594 0.3557 0.352 0.3483
-0.2
0.4207 0.4168 0.4129
0.409
0.3974 0.3936 0.3897 0.3859
-0.1 0.4602 0.4562 0.4522 0.4483
0.4325 0.4286
0.5 0.496
0.4721
0.0409
0.0367
0.0455
0.0559
0.0681
0.1003
0.119
0.0823
0.0985
0.117
0.1379
0.3264
0.33
0.3669
0.4052
0.4443
0.3632
0.4013
0.4404 0.4364
0.4801 0.4761
0.4247
0
0.492
0.488
0.484
0.4681
0.4641](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbeef81c8-e59c-4f32-9a90-8a508ac9345c%2F7666c8be-f66c-4e05-a1cd-5648df899489%2F9l22yzd_processed.png&w=3840&q=75)
Transcribed Image Text:For values of z less than -3.49 use 0.000 to approximate the area
0
0.01
0.08
0.0003
0.09
0.0002
-3.4
-3.3
-3.2
0.0003
0.0005
0.02
0.0003 0.0003
0.0005 0.0005
0.0007 0.0006
0.0009 0.0009
0.0013 0.0013
0.0018 0.0018
0.0025
0.0003
0.0005
0.0007
-3.1
0.001
-3 0.0013
-2.9 0.0019
-2.8 0.0026
-2.7 0.0035
-2.6 0.0047
-2.5 0.0062
-2.4 0.0082
0.03
0.04
0.0003 0.0003
0.0004 0.0004
0.0006 0.0006
0.0009 0.0008
0.0012 0.0012
0.0017 0.0016
0.0023
0.0032
0.0007
0.001
0.0014
0.0024
0.07
0.0003
0.0004 0.0004
0.0005 0.0005
0.0008 0.0007
0.0011
0.001
0.0015 0.0014
0.0021
0.0028
0.0038
0.0051
0.0068
0.0089
0.0116
0.015
0.0192
0.0019
0.0026
0.0033
0.0044
0.0059
0.0034
0.0045
0.006
0.008
0.0104
0.0136
0.0174
0.002
0.0027
0.0037
0.0049
0.0066
0.0087
0.0113
0.0146
0.0043
0.0057
0.0078 0.0075
0.0102 0.0099
0.0132 0.0129
0.017 0.0166
0.0217 0.0212
0.0055
0.0073
0.0096
0.0125
0.0162
0.0036
0.0048
0.0064
0.0084
0.011
0.0107
0.0139
0.0179
0.0228
0.0287
-2.3
-2.2
-2.1
-2
-1.9
-1.8
-1.7
0.0143
0.0222
0.0202
0.0182
0.0207
0.0262
0.0188
0.0239
0.0281
0.0274
0.0268
0.0256
0.0244
0.0233
0.0351
0.0344
0.0336
0.0329
0.0322
0.0294
0.05
0.06
0.0003 0.0003
0.0004 0.0004
0.0006 0.0006
0.0008 0.0008
0.0011 0.0011
0.0016 0.0015
0.0023 0.0022 0.0021
0.0031
0.003 0.0029
0.0041
0.004 0.0039
0.0054 0.0052
0.0071 0.0069
0.0094 0.0091
0.0122 0.0119
0.0158 0.0154
0.0197
0.025
0.0359
0.0314 0.0307 0.0301
0.0446 0.0436 0.0427 0.0418
0.0401 0.0392 0.0384 0.0375
-1.6 0.0548 0.0537 0.0526 0.0516 0.0505 0.0495 0.0485 0.0475 0.0465
-1.5 0.0668 0.0655 0.0643 0.063 0.0618 0.0606 0.0594 0.0582 0.0571
-1.4 0.0808 0.0793 0.0778 0.0764 0.0749 0.0735 0.0721 0.0708 0.0694
-1.3 0.0968 0.0951 0.0934 0.0918 0.0701
0.0885 0.0869 0.0853 30838
-1.2 0.1151 0.1131 0.1112 0.1093 0.1075 0.1056 0.1038 0.102
-1.1 0.1357 0.1335 0.1314 0.1292 0.1271 0.1251 0.123 0.121
-1 0.1587 0.1562 0.1539 0.1515 0.1492 0.1469 0.1446 0.1423 0.1401
-0.9 0.1841 0.1814 0.1788 0.1762 0.1736 0.1711 0.1685 0.166 0.1635 0.1611
-0.8 0.2119 0.2094 0.2061 0.2033 0.2005 0.1977 0.1949 0.1922 0.1894 0.1867
-0.7 0.242 0.2389 0.2358 0.2327 0.2296 0.2266 0.2236 0.2206 0.2177 0.2148
-0.6 0.2743 0.2709 0.2676 0.2643 0.2611 0.2578 0.2546 0.2514 0.2483 0.2451
-0.5 0.3085
0.305 0.3015 0.2981 0.2947 0.2912 0.2877 0.2843 0.281 0.2776
-0.4 0.3446 0.3409 0.3372 0.3336
0.3228 0.3192 0.3156 0.3121
-0.3 0.3821 0.3783 0.3745 0.3707
0.3594 0.3557 0.352 0.3483
-0.2
0.4207 0.4168 0.4129
0.409
0.3974 0.3936 0.3897 0.3859
-0.1 0.4602 0.4562 0.4522 0.4483
0.4325 0.4286
0.5 0.496
0.4721
0.0409
0.0367
0.0455
0.0559
0.0681
0.1003
0.119
0.0823
0.0985
0.117
0.1379
0.3264
0.33
0.3669
0.4052
0.4443
0.3632
0.4013
0.4404 0.4364
0.4801 0.4761
0.4247
0
0.492
0.488
0.484
0.4681
0.4641
![A survey of 2287 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 425 have donated blood in the past two years. Complete parts (a) through (c) below.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years.
p=
(Round to three decimal places as needed.)
(b) Verify that the requirements for constructing a confidence interval about p are satisfied.
The sample
simple random sample, the value of
is which is
10, and the
less than or equal to 5% of the
(Round to three decimal places as needed.)
(c) Construct and interpret a 90% confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
OA. There is a
% probability the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between
and
B. We are
% confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between
and](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbeef81c8-e59c-4f32-9a90-8a508ac9345c%2F7666c8be-f66c-4e05-a1cd-5648df899489%2Fy48bpq8_processed.png&w=3840&q=75)
Transcribed Image Text:A survey of 2287 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 425 have donated blood in the past two years. Complete parts (a) through (c) below.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years.
p=
(Round to three decimal places as needed.)
(b) Verify that the requirements for constructing a confidence interval about p are satisfied.
The sample
simple random sample, the value of
is which is
10, and the
less than or equal to 5% of the
(Round to three decimal places as needed.)
(c) Construct and interpret a 90% confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
OA. There is a
% probability the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between
and
B. We are
% confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between
and
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