survey was conducted that asked 1013 people how many books they had read in the past year. Results indicated that x= 12.5 books and s = 16.6 books. Construct a 90% confidence interval for the mean number ne interval. books people read. Interpret E Click the icon to view the table of critical t-values. Construct a 90% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice. Use ascending order. Round to two decimal places as needed.) OA. There is a 90% probability that the true mean number of books read is between and. DB. There is 90% confidence that the population mean number of books read is between and. OC. If repeated samples are taken, 90% of them will have a sample mean between and
survey was conducted that asked 1013 people how many books they had read in the past year. Results indicated that x= 12.5 books and s = 16.6 books. Construct a 90% confidence interval for the mean number ne interval. books people read. Interpret E Click the icon to view the table of critical t-values. Construct a 90% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice. Use ascending order. Round to two decimal places as needed.) OA. There is a 90% probability that the true mean number of books read is between and. DB. There is 90% confidence that the population mean number of books read is between and. OC. If repeated samples are taken, 90% of them will have a sample mean between 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
32
Transcribed Image Text:- Area in
right tail
t-Distribution
Area in Right Tail
Degrees of
Freedom
0.25
0.20 0.15
0.10
0.05 0.025
0.02
0.01 0.005 0.0025
0.001 0.0005
1.000
0.816
0.765
0.741
0.727
1.376
1.061
0.978
0.941
0.920
1.963
1.386
1.250
1.190
1.156
3.078
1.886
1.638
1.533
1.476
6.314
2.920
12.706 15.894
4.303
3.182
2.776
2.571
31.821 63.657
6.965
9.925
4.541
5.841
4.604
3.747
3.365
4.032
127.321 318.309 636.619
22.327 31.599
10.215 12.924
7173
5.893
14.089
7453
5.598
4.773
2
4.849
2.353
3.482
2.132
2.015
2.909
2.757
4
8.610
6,869
5
0.718
0.711
0.706
0,703
0.700
4.317
4.029
3.833
3.690
3.581
5.959
5.408
5.041
4.781
4.587
0.906 1.134
0.896
7
8
9
1.119
0.889 1.108
0,883
1.440
1.415
1.397
1.383
1.372
1.943
1.895
1.860
1.833
1,812
2.447
2.365
2.306
2.262
2.228
2.612
2.517
2.449
2.398
2,359
3.143
2.998
2.896
2.821
2,764
3.707
3.499
3.355
3.250
3.169
5.208
4.785
4.501
4.297
4.144
1.100
1.093
10
0.879
1.796
1.782
1.771
1.761
1.753
3.497
4.437
4.318
4.221
4.140
4.073
11
12
0.697
0.695
0.876 1.088
1.363
1.356
1.350
1.345
1.341
2.201
2.179
2.160
2.145
2.131
2.328
2.303
2282
2.264
2.249
2.718
2.681
2.650
2,624
2.602
3.106
3.055
3.012
4.025
3.930
3.852
3.787
3.733
0.873
1.083
3.428
3.372
3.326
3.286
13
0.870
0.694
0.692
1.079
0.868 1.076
0.866 1.074
2.977
2.947
14
15
0.691
0.690
0.689
0.688
0.688
0.687
2.921
2.898
2.878
2.861
2845
4.015
3.965
3.922
3.883
3.850
0.865
0.863
16
17
18
19
20
1.071
1.069
0.862 1.067
1.066
1.064
1.337
1.333
1.330
1.328
1.325
1.746
1.740
1.734
1.729
2.120
2.110
2.101
2.093
2.086
2.235
2.224
2.214
2,20s
2.197
2.583
2.567
2,552
2.539
2.528
3.252
3.222
3.197
3.174
3.153
3.686
3.646
3.610
3.579
3.552
0.861
0.860
2.205
1.725
21
22
23
24
25
0.686
0.686
0.685
0.685
0.684
0.859
0,858
0,858
0,857
0.856
1.063
1.061
1.060
1.059
1.058
1.323
1.321
1.319
1.318
1.316
1.721
1.717
1.714
1.711
1.708
2.080
2.074
2.069
2.064
2.060
2.189
2.183
2.177
2.172
2.167
2.518
2.508
2.500
2.492
2.485
2.831
2.819
2,807
2.797
3.135
3.119
3.104
3.091
3.527
3.505
3.485
3.467
3.450
3.819
3.792
3.768
3.745
3.725
2.797
2.787
3.078
26
27
28
29
30
0.684
0.684
0.683
0.683
0.683
0,856
0.855
0,855
0.854
0.854 1.055
1.058
1.057
1.056
1.315
1.314
1.313
1.311
1.310
1.706
1.703
1.701
2.056
2.052
2.048
2.045
2.042
2.162
2.158
2.154
2.150
2.147
2.479
2.473
2.467
2.462
2.457
2.779
2.771
2.763
2.756
2.750
3.067
3.057
3.047
3.038
3.435
3.421
3.408
3.707
3.690
3.674
3.659
3.646
1.055
1,600
1.699
3,305
3.396
1.697
3.030
3.385
31
32
33
34
35
0.682
0.682
0.682
0.682
0.682
1.696
1.694
1.692
2.040
2.037
2.035
2,032
2.030
2.453
2.449
2.445
2441
3.022
3.015
3,008
3.002
0.853
0,853
1.054
1.309
1.309
1.308
1.307
1.306
2.144
2.141
2.138
2.136
2.133
2.744
2.738
2.733
2.728
2.724
3.375
3.365
3.356
3.348
3.340
3.633
3.622
3.611
3.601
1.054
0.853
1.053
0.852 1.052
0.852 1.052
1.691
1.690
2.438
2.996
3.591
2.434
2.431
2.429
2.426
2.423
1.052
1.306
36
37
38
0.681
0.681
0.681
0,681
0.681
0,852
0.851 1.051
0.851 1.051
0.851 1.050
1.050
1.305
1.304
1.304
1.303
1.688
1.687
1.686
1.685
1.684
2.028
2.026
2.024
2.023
2.021
2.131
2.129
2.127
2.125
2.123
2.719
2.715
2.712
2.706
2.704
2.990
2.985
2.980
2.976
2.971
3.333
3.326
3.319
3.313
3.307
3.582
3.574
3.566
3.558
3.551
39
40
0.851
0.679
0.679
0,678
0.678
0.677
1.299
1.296
1.294
1.292
1.291
1.676
1.671
1.667
1.664
1.662
2.009
2.000
1.994
1.990
1.987
2.109
2.099
2.093
2.088
2.084
2.678
2.660
2.648
2.639
2.632
2.937
2.915
2.899
2.887
2,878
3.261
3.232
3.211
3.195
3.183
50
0.849 1.047
0.848
1.045
0.847
1.044
0.846
1.043
0.846
1.042
2.403
2.390
2.381
2.374
2.368
3.496
3.460
3.435
3.416
3.402
60
70
80
90
100
1000
0.677
0.675
0.674
0.845
0.842
0,842
1.042
1.037
1.036
1.290
1.282
1.282
1.660
1.646
1.645
1.984
1.962
1.960
2.081
2.056
2.054
2.364
2.330
2.326
2.626
2.581
2.576
2.871
2.813
2.807
3.174
3.098
3.090
3.390
3.300
3,291
Degrees of 0.25
Freedom
0.20
0.15
0.10
0.05
0.025
0.02
0.01
0.005 0.0025
0.001 0.0005
t-Distribution
Area in Right Tail
Transcribed Image Text:A survey was conducted that asked 1013 people how many books they had read in the past year. Results indicated that x = 12.5 books ands = 16.6 books. Construct a 90% confidence interval for the mean number of books people read. Interpret
the interval.
Click the icon to view the table of critical t-values.
.....
Construct a 90% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice.
(Use ascending order. Round to two decimal places as needed.)
O A. There is a 90% probability that the true mean number of books read is between
and
B. There is 90% confidence that the population mean number of books read is between
and.
O C. If repeated samples are taken, 90% of them will have a sample mean between
and
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