A survey was conducted that asked 1019 people how many books they had read in the past year. Results indicated that x= 14.9 books and s = 16.6 books. Construct a 95% confidence interval for the mean number of books people read. Inte the interval. Click the icon to view the table of critical t-values. Construct a 95% 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. If repeated samples are taken, 95% of them will have a sample mean between and. O B. There is 95% confidence that the population mean number of books read is between and. O C. There is a 95% probability that the true mean number books read is between and
A survey was conducted that asked 1019 people how many books they had read in the past year. Results indicated that x= 14.9 books and s = 16.6 books. Construct a 95% confidence interval for the mean number of books people read. Inte the interval. Click the icon to view the table of critical t-values. Construct a 95% 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. If repeated samples are taken, 95% of them will have a sample mean between and. O B. There is 95% confidence that the population mean number of books read is between and. O C. There is a 95% probability that the true mean number books read is 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
2
3.
4
5
1.000
0.816
0.765
0.741
0.727
15.894
4,849
3.482
2.999
2.757
1.376
1.963
1.061 1.386
0.978 1.250
3.078
1.886
1.638
1.533
1.476
6.314
2.920
2.353
2.132
2.015
12.706
4.303
3.182
2.776
2.571
31.821 63.657 127.321 318.309 636.619
14.089
7453
5.598
4.773
6,965
4.541
3.747
3.365
9.925
5.841
22.327 31.599
10.215
7173
5,893
12.924
0.941 1.190
0.920 1.156
4.604
4,032
8,610
6.869
6
7
8
0.718
0.711
0.706
0.703
0.700
0.906 1.134
0.896 1.119
0.889
1.108
0.883 1.100
0.879 1.093
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
3.707
3.499
3.355
3.250
3.169
4.317
4.029
3.833
3.690
3.581
5.208
4.785
4.501
4.297
4.144
5.959
5.408
5.041
4.781
4.587
10
2764
11
12
13
2.201
2.179
2.160
2.145
2.131
0.697
0.695
0.694
0.692
0.691
0.876 1.088
0.873 1.083
0.870 1.079
0.868 1.076
0.866 1.074
1.363
1.356
1.350
1.345
1.341
1.796
1.782
1.771
1.761
1.753
2.328
2.303
2.282
2.264
2.249
2.718
2.681
2.650
2.624
2.602
3.106
3.055
3.012
2.977
2.947
3.497
3.428
3.372
3.326
3.286
4.025
3.930
3.852
3.787
3.733
4.437
4.318
4.221
4.140
4.073
14
15
3.686
3.646
3.610
3.579
3.552
4.015
3.965
3.922
3.883
3.850
3.819
3.792
3.768
3.745
3.725
0.690
0.689
0.688
0.688
0.687
1.337
1.333
1.330
1.328
1.325
3.252
3.222
3.197
3.174
3.153
0.865 1.071
0.863
16
17
18
19
20
1.069
0.862 1.067
0.861 1.066
0.860 1.064
1.746
1.740
1.734
1.729
1.725
2.120
2.110
2.101
2.093
2.086
2.235
2.224
2.214
2.205
2.197
2.583
2.567
2.552
2.539
2.528
2.921
2.898
2.878
2.861
2.845
1.721
1.717
1.714
1.711
2.080
2.074
2.069
2.064
2.060
2.189
2.183
2.177
2.172
2.167
0.859
21
22
23
24
25
0.686
0.686
0.685
0.685
0.684
2.831
2.819
2.807
2.797
2.787
3.135
3.119
3.104
3.091
3.078
3.527
3.505
3.485
3.467
3.450
1.063
1.323
1.321
1.319
1.318
1.316
2.518
2.508
2.500
2.492
2.485
0.858
1.061
0.858 1.060
0.857 1.059
0.856 1.058
1.711
1.708
0.684
0.684
0.683
0.683
1.315
1.314
1.313
1.311
1.310
2.162
2.158
2.154
2.150
2.147
2.779
2.771
2.763
2.756
2.750
3.067
3.057
3.435
3.421
3.408
3.306
3.385
0,856
26
27
28
29
30
1.058
1.057
0.855 1.056
1.706
1.703
1.701
1.699
1.697
2.056
2.052
2.048
2,045
2.042
2.479
2.473
2.467
2.462
2457
3.707
3.690
3.674
0.855
0.683
0.683
3.047
3.038
3.030
3,659
3.646
0.854 1.055
1.609
0,854
1.055
31
32
33
34
35
0.682
0.682
0.682
0,682
0.682
2.040
2.037
2.035
2.032
2.030
2.453
2.449
2.445
2.441
2438
2.744
2.738
2.733
2.728
2.724
3.022
3.015
3.008
3.002
2.996
3.375
3.365
3.356
3348
0.853 1.054
0.853
1.054
0.853 1.053
0.852 1.052
0.852 1.052
1.309
1.309
1.308
1.307
1.306
1.696
1.694
1.692
1.691
1.690
2.144
2.141
2.138
2.136
2.133
3.633
3.622
3.611
3.601
3.591
3.340
36
37
38
39
40
0.681
0.681
0.681
0.681
0.681
2.434
2.431
2.429
2.426
2.423
3.333
3.326
3.319
3.313
3.307
0,852
1.052
0.851 1.051
0.851 1.051
0.851 1.050
1.050
1.306
1.305
1.304
1.304
1303
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
2.708
2.704
2.678
2.660
2.648
2.639
2.632
2.990
2.985
2.980
2.976
2.971
3.582
3.574
3.566
3.558
3.551
0.851
2.403
2.390
2.381
2.374
2.368
2.937
2.915
2.899
2.887
2.878
0.679
3.261
3.232
3.211
3.195
3.183
3.496
3.460
3.435
3.416
3.402
50
0.679
0.678
0.678
0.677
0.849 1.047
0.848
1.045
0,847
1.044
0,846
1.043
0.846
1.042
1.209
1.296
1.294
1.292
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
60
70
80
90
1.291
0.677
0.675
0.674
1290
1.282
1.282
1.984
1.962
1.960
2.081
2.056
2.054
2.626
1.660
1.646
1.645
2.364
2.330
2.326
2.871
2.813
2.807
3.174
3.098
3.090
0.845
100
1000
1.042
0.842
1.037
0.842 1.036
2.581
2576
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 1019 people how many books they had read in the past year. Results indicated that x = 14.9 books ands = 16.6 books. Construct a 95% 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 95% 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.)
A. If repeated samples are taken, 95% of them will have a sample mean between
and
O B. There is 95% confidence that the population mean number of books read is between
and
O C. There is a 95% probability that the true mean number of books read is between
and
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