A survey was conducted that asked 1011 people how many books they had read in the past year. Results indicated that x= 12.8 books and s = 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 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 95% confidence that the population mean number of books read is between and. O B. If repeated samples are taken, 95% of them will have a sample mean between and. O C. There is a 95% probability that the true mean number of books read is between and

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Question #3

A survey was conducted that asked 1011 people how many books they had read in the past year. Results indicated that x = 12.8 books and s = 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. There is 95% confidence that the population mean number of books read is between
and
O B. If repeated samples are taken, 95% of them will have a sample mean between
and
O C. There is a 95% probability that the true mean number of books read is between
and
Transcribed Image Text:A survey was conducted that asked 1011 people how many books they had read in the past year. Results indicated that x = 12.8 books and s = 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. There is 95% confidence that the population mean number of books read is between and O B. If repeated samples are taken, 95% of them will have a sample mean between and O C. There is a 95% probability that the true mean number of books read is between and
- Area in
Tight tail
t-Distribution
Area in Rioht Tai
Degrees of
Freedom
0.25 0.20 0,15
0.10
0.05
0.025
0.03
0.01
0,005 0.0025
0.001 0.0005
127.32 1
318.309 636,619
22.327 31.599
7.453 10.215 12.924
1.000
1.376 1.963
3.078
6.314
12.70
15.804
31.821
63.657
9.925 14.089
1.061 1.386 1.886
0.978 1.250 1.638 2.353 3.182 3.482
0.816
2.920
4.303 4.849
6.96:
0.765
4541 5.841
0.727
1156 1476 2015 1 757
A 77
6 860
0718
1440
121
1134 1.40 1.945
3400
3.355
383
1250 3600
S409
2 440
5309
4 501
5.041
0.703 0883 1100 1383 1833 262
0 700 0879 1.093
0 607
0.695
4.297 4 781
2.359
3.169
3.581
4.144 4.587
0876 108s
1083
1079
2 201
4.025 4.437
3.930
3.852
3.787
3.733
2.328
3.10
3.055
3.012
3.497
3.428
3.372
3.326
3.286
0.873
2.303
2.282
2.264
4.318
4.221
2.650
4.140
4.073
297
1.337
2 235
2.92
3.252
3.686
3.646
4.015
3.222
3.965
3157
1050
301
3467 3 74
3.450 3.725
3.078
3.067
3.435
3.421
3.408
3.396
3.707
3.690
3.674
3.659
3.646
3027
3.633
3.375
3.365
3.015
3.622
3.008
3.356
3.01
2.131
2.719
7712
1685
5 125
2 076
3.558
3.551
3313
0,851 1.050
1.684
2.021
2.123
2704
2.971
3.307
3.496
3.460
3.435
0.849 1.047
2.009
2.109
2.678
2.660
2.648
2.639
5632
3.261
3.232
3.211
3.195
3.183
0.848 1.045
1.671
1,667
2.099
2.093
2.088
5084
2.000
0,678
0.847 1044
1.994
1.900
0.846 1.043
1042
O 846
0,678
1.664
1.662
3.416
1.291
2.878
3.402
100
1 084
0677
0.845
1042
1.290
1.282
1282
1.660
2.081
2.626
2 581
2.871
1037
3.174
3.009
3.390
3.300
0,675
0.842
1.646
1.967
2.056
281
0 842
1036
1.645
1.960
2054
2326
257
3.000
3.291
Degrees of 0.25 0.20 0,15
Freedom
0.10
0.05
0.025
0.02
0.01
0.005 0.0025
0.001 0.0005
t-Distribution
Area in Right Tail
2.
isicie N
222
I22
Transcribed Image Text:- Area in Tight tail t-Distribution Area in Rioht Tai Degrees of Freedom 0.25 0.20 0,15 0.10 0.05 0.025 0.03 0.01 0,005 0.0025 0.001 0.0005 127.32 1 318.309 636,619 22.327 31.599 7.453 10.215 12.924 1.000 1.376 1.963 3.078 6.314 12.70 15.804 31.821 63.657 9.925 14.089 1.061 1.386 1.886 0.978 1.250 1.638 2.353 3.182 3.482 0.816 2.920 4.303 4.849 6.96: 0.765 4541 5.841 0.727 1156 1476 2015 1 757 A 77 6 860 0718 1440 121 1134 1.40 1.945 3400 3.355 383 1250 3600 S409 2 440 5309 4 501 5.041 0.703 0883 1100 1383 1833 262 0 700 0879 1.093 0 607 0.695 4.297 4 781 2.359 3.169 3.581 4.144 4.587 0876 108s 1083 1079 2 201 4.025 4.437 3.930 3.852 3.787 3.733 2.328 3.10 3.055 3.012 3.497 3.428 3.372 3.326 3.286 0.873 2.303 2.282 2.264 4.318 4.221 2.650 4.140 4.073 297 1.337 2 235 2.92 3.252 3.686 3.646 4.015 3.222 3.965 3157 1050 301 3467 3 74 3.450 3.725 3.078 3.067 3.435 3.421 3.408 3.396 3.707 3.690 3.674 3.659 3.646 3027 3.633 3.375 3.365 3.015 3.622 3.008 3.356 3.01 2.131 2.719 7712 1685 5 125 2 076 3.558 3.551 3313 0,851 1.050 1.684 2.021 2.123 2704 2.971 3.307 3.496 3.460 3.435 0.849 1.047 2.009 2.109 2.678 2.660 2.648 2.639 5632 3.261 3.232 3.211 3.195 3.183 0.848 1.045 1.671 1,667 2.099 2.093 2.088 5084 2.000 0,678 0.847 1044 1.994 1.900 0.846 1.043 1042 O 846 0,678 1.664 1.662 3.416 1.291 2.878 3.402 100 1 084 0677 0.845 1042 1.290 1.282 1282 1.660 2.081 2.626 2 581 2.871 1037 3.174 3.009 3.390 3.300 0,675 0.842 1.646 1.967 2.056 281 0 842 1036 1.645 1.960 2054 2326 257 3.000 3.291 Degrees of 0.25 0.20 0,15 Freedom 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 t-Distribution Area in Right Tail 2. isicie N 222 I22
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