A survey was conducted that asked 1004 people how many books they had read in the past year. Results indicated that x = 13.3 books and s = 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 O B. If repeated samples are taken, 90% of them will have a sample mean between and O C. There is 90% confidence that the population mean number of books read is between and

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A survey was conducted that asked 1004 people how many books they had read in the past year. Results indicated that x = 13.3 books and s = 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.)
A. There is a 90% probability that the true mean number of books read is between
and
B. If repeated samples are taken, 90% of them will have a sample mean between
and
C. There is 90% confidence that the population mean number of books read is between
and
Transcribed Image Text:A survey was conducted that asked 1004 people how many books they had read in the past year. Results indicated that x = 13.3 books and s = 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.) A. There is a 90% probability that the true mean number of books read is between and B. If repeated samples are taken, 90% of them will have a sample mean between and C. There is 90% confidence that the population mean number of books read is between and
Table of Critical t-Values
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
3.078
1.000
0.816
0.765
1.376
1.061
0.978
0.941
0.920
1.963
1.386
1.250
1.190
1.156
31.821
6.965
6.314
2.920
12.706
4.303
3.182
2.776
2.571
15.894
4.849
63.657
9.925
5.841
4.604
4.032
127.32 1
14.089
7453
5.598
4.773
318.309
22.327
10.215
7173
5.893
636.619
31.599
1.886
1.638
1.533
2.353
2.132
2.015
3.482
2.999
2.757
4.541
3.747
3.365
12.924
8.610
6.869
0.741
0.727
1.476
3.707
3.499
3.355
3.250
3.169
5.208
4.785
4.501
0.718
1.943
1.895
2.447
2.365
2.306
2.262
2.228
3.143
2.998
2.896
2.821
2.764
5.959
5.408
0.906
0.896
0.889
0.883
1.134
1.119
1.108
1.100
1.093
1.440
1.415
0.711
0.706
0.703
1.397
1.383
1.372
1.860
1.833
1.812
2.612
2.517
2.449
2.398
2.359
4.317
4.029
3.833
3.690
3.581
5.041
4.781
4.587
4.297
4.144
10
0.700
0.879
0.876
0.873
0.870
0.868
0.866
2.718
2.681
2.650
2.624
2.602
1.796
1.782
1.771
1.761
1.753
3.106
3.055
4.025
3.930
3.852
4.437
4.318
4.221
4.140
4.073
2.201
11
12
13
14
15
0.697
0.695
0.694
0.692
0.691
1.088
1.083
1.079
1.076
1.074
1.363
1.356
1.350
1.345
1.341
2.328
2.303
2.282
2.264
2.249
3.497
3.428
3.372
3.326
3.286
2.179
2.160
3.012
2.145
2.977
3.787
2.131
2.947
3.733
0.690
0.689
0.688
0.688
0.687
0.865
0.863
0.862
0.861
1.337
1.333
1.330
1.328
1.325
2.235
2.224
2.214
2.205
2.197
2.583
2.567
2.552
2.539
2528
3.252
3.222
3.686
16
17
18
19
1.071
1.069
1.067
1.066
1.064
1.746
1.740
1.734
1.729
1.725
2.120
2.110
2.101
2.921
2.898
2.878
2.861
2845
3.197
3.174
3.153.
3.646
3.610
3.579
3.552
4.015
3.965
3.922
3.883
3.850
2.093
2.086
20
0.860
Transcribed Image Text:Table of Critical t-Values 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 3.078 1.000 0.816 0.765 1.376 1.061 0.978 0.941 0.920 1.963 1.386 1.250 1.190 1.156 31.821 6.965 6.314 2.920 12.706 4.303 3.182 2.776 2.571 15.894 4.849 63.657 9.925 5.841 4.604 4.032 127.32 1 14.089 7453 5.598 4.773 318.309 22.327 10.215 7173 5.893 636.619 31.599 1.886 1.638 1.533 2.353 2.132 2.015 3.482 2.999 2.757 4.541 3.747 3.365 12.924 8.610 6.869 0.741 0.727 1.476 3.707 3.499 3.355 3.250 3.169 5.208 4.785 4.501 0.718 1.943 1.895 2.447 2.365 2.306 2.262 2.228 3.143 2.998 2.896 2.821 2.764 5.959 5.408 0.906 0.896 0.889 0.883 1.134 1.119 1.108 1.100 1.093 1.440 1.415 0.711 0.706 0.703 1.397 1.383 1.372 1.860 1.833 1.812 2.612 2.517 2.449 2.398 2.359 4.317 4.029 3.833 3.690 3.581 5.041 4.781 4.587 4.297 4.144 10 0.700 0.879 0.876 0.873 0.870 0.868 0.866 2.718 2.681 2.650 2.624 2.602 1.796 1.782 1.771 1.761 1.753 3.106 3.055 4.025 3.930 3.852 4.437 4.318 4.221 4.140 4.073 2.201 11 12 13 14 15 0.697 0.695 0.694 0.692 0.691 1.088 1.083 1.079 1.076 1.074 1.363 1.356 1.350 1.345 1.341 2.328 2.303 2.282 2.264 2.249 3.497 3.428 3.372 3.326 3.286 2.179 2.160 3.012 2.145 2.977 3.787 2.131 2.947 3.733 0.690 0.689 0.688 0.688 0.687 0.865 0.863 0.862 0.861 1.337 1.333 1.330 1.328 1.325 2.235 2.224 2.214 2.205 2.197 2.583 2.567 2.552 2.539 2528 3.252 3.222 3.686 16 17 18 19 1.071 1.069 1.067 1.066 1.064 1.746 1.740 1.734 1.729 1.725 2.120 2.110 2.101 2.921 2.898 2.878 2.861 2845 3.197 3.174 3.153. 3.646 3.610 3.579 3.552 4.015 3.965 3.922 3.883 3.850 2.093 2.086 20 0.860
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