A simple random sample of size n is drawn. The sample mean, x, is found to be 17.9, and the sample standard deviation, s, is found to be 4.7. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about μ if the sample size, n, is 35. Lower bound: Upper bound: (Use ascending order. Round to two decimal places as needed)
A simple random sample of size n is drawn. The sample mean, x, is found to be 17.9, and the sample standard deviation, s, is found to be 4.7. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about μ if the sample size, n, is 35. Lower bound: Upper bound: (Use ascending order. Round to two decimal places as needed)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:t-Distribution Critical Values Table
Degrees of
Freedom 0.25
STKIE MAANS SERRA
13
14
15
16
18
19
20
0.718 0.906 1.134
0.711 0.896 1.119
0.706 0.889 1.108
0.703 0.883 1.100
0.700 0.879 1.093
0.697
right tail
0.20 0.15 0.10
1.000 1.376 1.963 3,078 6.314
-0.816 1061 1.386
2.920
1.886
0.765
1.250
0.978
2.353
1.638
0.741
0.727 0.920
2.132
1.190
0.941
1.156
2.015
0.695
0.694
0.692
0.691
0.690
0.689
0.688
0.688
0.687
0.876
0.873
0.870
0.868
0.866
***
1.533
1.476
1.440
1.415
1.397
1.383
1.372
r-Distribution
Area in Right Tail
0.05 0.025 0.028
12.706 15.894
4.303 4.849
3.182
3.482
2.776
2.999
2.571
2.757
0.865 1.071
1.337
0.863
1.069
1.333
0.862
1.067
1.330
0.861
1.066 1.328
0.860 1064
1.325
1.943
1.805
1.860
1.833
1812
1.088
1.363 1.796
1.083
1.356
1.782
1.350
1.079
1.771
1.076
1.345
1.761
1074
1.341
1.753
1.746
1.740
1.734
1.729
1.725
2.447
2.612
2.365
2.517
2.306
2.449
2.262
2.398
2.228 2.359
2.201
2.179
2.160
2.145
2.131
2.328
2.303
2.282
2.264
2.249
2.120
2.235
2.110 2.224
2.101
2.214
2.093
2.205
2.086
2.197
0.01
31.821
6.965
63.657 127321
9.925 14.089
4.541 5.841 7.453
3.747
4.604
5.598
3.365
4.032
4.773
3.143
2.098
2.896
2.821
2.764
0.005 0.025 0.0010 04.06
0.0005
2.583
2.567
2.552
2.530
2.528
3.707
3.499
3.355
3.250
3.169
2.718
3.106
2.681 3.055
2.650
3.012
2.624
2.977.
2.947
2.602
2.021
2.896
2.878
2.861
2845
4.317
4.029
3.833
3.600
3.581
3.497
3.428
3.372
3.326
3.286
3.252
3.222
3.197
3.174
3.153
318.309
22.327
10.215
7173
5.893
5.208
4.785
4.501
4.297
4.144
4.025
3.930
3.852
3.787
3.733
3.686
3.646
3.610
3.579
3.552
636.619
31.509
12.924
8.610
6.869
5.959
5.408
5.041
4.781
4.587
4.437
4318
4.221
4.140
4.073
4.015
3.965
3.922
3.883
3.850
0
Transcribed Image Text:A simple random sample of size n is drawn. The sample mean, x, is found to be 17.9, and the sample standard deviation, s, is found to be 4.7.
Click the icon to view the table of areas under the t-distribution.
(a) Construct a 95% confidence interval about u if the sample size, n, is 35.
μ
Lower bound: Upper bound:
(Use ascending order. Round to two decimal places as needed)
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