Confidence Level Confidence Level .80 .90 .95 .98 .99 .80 .90 .95 .98 .99 Significance Level for Two-Tailed Test Significance Level for Two-Tailed Test .20 .10 .05 .02 .01 .20 .10 .05 .02 .01 Significance Level for One-Tailed Test Significance Level for One-Tailed Test d.f. .10 .05 .025 .01 .005 d.f. .10 .05 .025 .01 .005 1 3.078 6.314 12.706 31.821 63.657 36 1.306 1.688 2.028 2.434 2.719 1.886 2.920 4.303 6.965 9.925 37 1.305 1.687 2.026 2.431 2.715 1.638 2.353 3.182 4.541 5.841 38 1.304 1.686 2.024 2.429 2.712 1.533 2.132 2.776 3.747 4.604 39 1.304 1.685 2.023 2.426 2.708 1,476 2.015 2.571 3.365 4.032 40 1.303 1.684 2.021 2.423 2.704 1.440 1.943 2.447 3.143 3.707 41 1.303 1.683 2.020 2.421 2.701 1.415 1.895 2.365 2.998 3.499 42 1.302 1.682 2.018 2.418 2.698 1.397 1.860 2.306 2.896 3.355 43 1.302 1.681 2.017 2.416 2.695 9 1.383 1.833 2.262 2.821 3.250 44 1.301 1.680 2.015 2.414 2.692 10 1.372 1.812 2.228 2.764 3.169 45 1.301 1.679 2.014 2.412 2.690 11 1.363 1.796 2.201 2.718 3.106 46 1.300 1.679 2.013 2.410 2.687 12 1.356 1.782 2.179 2.681 3.055 47 1.300 1.678 2.012 2.408 2.685 13 1.350 1.771 2.160 2.650 3.012 48 1.299 1.677 2.011 2.407 2.682 14 1.345 1.761 2.145 2.624 2.977 49 1.299 1.677 2.010 2.405 2.680 15 1.341 1.753 2.131 2.602 2.947 50 1.299 1.676 2.009 2.403 2.678 16 1.337 1.746 2.120 2.583 2.921 55 1.297 1.673 2.004 2.396 2.668 17 1.333 1.740 2.110 2.567 2.898 60 1.296 1.671 2.000 2.390 2.660 18 1.330 1.734 2.101 2.552 2.878 65 1.295 1.669 1.997 2.385 2.654 19 1.328 1.729 2.093 2.539 2.861 70 1.294 1.667 1.994 2.381 2.648 20 1.325 1.725 2.086 2.528 2.845 75 1.293 1.665 1.992 2.377 2.643 21 1.323 1.721 2.080 2.518 2.831 80 1.292 1.664 1.990 2.374 2.639 22 1.321 1.717 2.074 2.508 2.819 85 1.292 1.663 1.988 2.371 2.635 23 1.319 1.714 2.069 2.500 2.807 90 1.291 1.662 1.987 2.368 2.632 24 1.318 1.711 2.064 2.492 2.797 95 1.291 1.661 1.985 2.366 2.629 25 1.316 1.708 2.060 2.485 2.787 100 1.290 1.660 1.984 2.364 2.626 26 1.315 1.706 2.056 2.479 2.779 110 1.289 1.659 1.982 2.361 2.621 27 1.314 1.703 2.052 2.473 2.771 120 1.289 1.658 1.980 2.358 2.617 28 1.313 1.701 2.048 2.467 2.763 130 1.288 1.657 1.978 2.355 2.614 29 1.311 1.699 2.045 2.462 2.756 140 1.288 1.656 1.977 2.353 2.611 30 1.310 1.697 2.042 2.457 2.750 150 1.287 1.655 1.976 2.351 2.609 31 1.309 1.696 2.040 2.453 2.744 00 1.282 1.645 1.960 2.326 2.576 32 1.309 1.694 2.037 2.449 2.738 33 1.308 1.692 2.035 2.445 2.733 34 1.307 1.691 2.032 2.441 2.728 35 1.306 1.690 2.030 2.438 2.724
Confidence Level Confidence Level .80 .90 .95 .98 .99 .80 .90 .95 .98 .99 Significance Level for Two-Tailed Test Significance Level for Two-Tailed Test .20 .10 .05 .02 .01 .20 .10 .05 .02 .01 Significance Level for One-Tailed Test Significance Level for One-Tailed Test d.f. .10 .05 .025 .01 .005 d.f. .10 .05 .025 .01 .005 1 3.078 6.314 12.706 31.821 63.657 36 1.306 1.688 2.028 2.434 2.719 1.886 2.920 4.303 6.965 9.925 37 1.305 1.687 2.026 2.431 2.715 1.638 2.353 3.182 4.541 5.841 38 1.304 1.686 2.024 2.429 2.712 1.533 2.132 2.776 3.747 4.604 39 1.304 1.685 2.023 2.426 2.708 1,476 2.015 2.571 3.365 4.032 40 1.303 1.684 2.021 2.423 2.704 1.440 1.943 2.447 3.143 3.707 41 1.303 1.683 2.020 2.421 2.701 1.415 1.895 2.365 2.998 3.499 42 1.302 1.682 2.018 2.418 2.698 1.397 1.860 2.306 2.896 3.355 43 1.302 1.681 2.017 2.416 2.695 9 1.383 1.833 2.262 2.821 3.250 44 1.301 1.680 2.015 2.414 2.692 10 1.372 1.812 2.228 2.764 3.169 45 1.301 1.679 2.014 2.412 2.690 11 1.363 1.796 2.201 2.718 3.106 46 1.300 1.679 2.013 2.410 2.687 12 1.356 1.782 2.179 2.681 3.055 47 1.300 1.678 2.012 2.408 2.685 13 1.350 1.771 2.160 2.650 3.012 48 1.299 1.677 2.011 2.407 2.682 14 1.345 1.761 2.145 2.624 2.977 49 1.299 1.677 2.010 2.405 2.680 15 1.341 1.753 2.131 2.602 2.947 50 1.299 1.676 2.009 2.403 2.678 16 1.337 1.746 2.120 2.583 2.921 55 1.297 1.673 2.004 2.396 2.668 17 1.333 1.740 2.110 2.567 2.898 60 1.296 1.671 2.000 2.390 2.660 18 1.330 1.734 2.101 2.552 2.878 65 1.295 1.669 1.997 2.385 2.654 19 1.328 1.729 2.093 2.539 2.861 70 1.294 1.667 1.994 2.381 2.648 20 1.325 1.725 2.086 2.528 2.845 75 1.293 1.665 1.992 2.377 2.643 21 1.323 1.721 2.080 2.518 2.831 80 1.292 1.664 1.990 2.374 2.639 22 1.321 1.717 2.074 2.508 2.819 85 1.292 1.663 1.988 2.371 2.635 23 1.319 1.714 2.069 2.500 2.807 90 1.291 1.662 1.987 2.368 2.632 24 1.318 1.711 2.064 2.492 2.797 95 1.291 1.661 1.985 2.366 2.629 25 1.316 1.708 2.060 2.485 2.787 100 1.290 1.660 1.984 2.364 2.626 26 1.315 1.706 2.056 2.479 2.779 110 1.289 1.659 1.982 2.361 2.621 27 1.314 1.703 2.052 2.473 2.771 120 1.289 1.658 1.980 2.358 2.617 28 1.313 1.701 2.048 2.467 2.763 130 1.288 1.657 1.978 2.355 2.614 29 1.311 1.699 2.045 2.462 2.756 140 1.288 1.656 1.977 2.353 2.611 30 1.310 1.697 2.042 2.457 2.750 150 1.287 1.655 1.976 2.351 2.609 31 1.309 1.696 2.040 2.453 2.744 00 1.282 1.645 1.960 2.326 2.576 32 1.309 1.694 2.037 2.449 2.738 33 1.308 1.692 2.035 2.445 2.733 34 1.307 1.691 2.032 2.441 2.728 35 1.306 1.690 2.030 2.438 2.724
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
A random sample of 21 items is drawn from a population whose standard deviation is unknown. The sample mean is x⎯⎯x¯ = 910 and the sample standard deviation is s = 20. Use Appendix D to find the values of Student’s t.
(a) Construct an
The 99% confidence interval is from to
(b) Construct an interval estimate of μ with 99% confidence, assuming that s = 40. (Round your answers to 3 decimal places.)
The 99% confidence interval is from to
(c) Construct an interval estimate of μ with 99% confidence, assuming that s = 80. (Round your answers to 3 decimal places.)
The 99% confidence interval is from to
Transcribed Image Text:Confidence Level
Confidence Level
.80
.90
.95
.98
.99
.80
.90
.95
.98
.99
Significance Level for Two-Tailed Test
Significance Level for Two-Tailed Test
.20
.10
.05
.02
.01
.20
.10
.05
.02
.01
Significance Level for One-Tailed Test
Significance Level for One-Tailed Test
d.f.
.10
.05
.025
.01
.005
d.f.
.10
.05
.025
.01
.005
1 3.078 6.314
12.706
31.821
63.657
36 1.306 1.688 2.028 2.434
2.719
1.886 2.920
4.303
6.965
9.925
37 1.305 1.687 2.026
2.431
2.715
1.638 2.353
3.182
4.541
5.841
38 1.304
1.686 2.024 2.429
2.712
1.533
2.132
2.776
3.747
4.604
39 1.304 1.685 2.023 2.426
2.708
1,476
2.015
2.571
3.365
4.032
40 1.303 1.684 2.021 2.423
2.704
1.440
1.943
2.447
3.143
3.707
41
1.303 1.683 2.020
2.421
2.701
1.415
1.895
2.365
2.998
3.499
42 1.302 1.682 2.018
2.418
2.698
1.397
1.860
2.306
2.896
3.355
43 1.302 1.681
2.017
2.416
2.695
9 1.383 1.833
2.262
2.821
3.250
44
1.301
1.680
2.015
2.414
2.692
10
1.372
1.812
2.228
2.764
3.169
45
1.301
1.679
2.014
2.412
2.690
11
1.363
1.796
2.201
2.718
3.106
46 1.300 1.679
2.013
2.410
2.687
12
1.356
1.782
2.179
2.681
3.055
47 1.300 1.678
2.012
2.408 2.685
13
1.350
1.771
2.160
2.650
3.012
48 1.299 1.677
2.011
2.407 2.682
14
1.345
1.761
2.145
2.624
2.977
49 1.299 1.677
2.010 2.405 2.680
15
1.341
1.753
2.131
2.602
2.947
50 1.299 1.676 2.009 2.403 2.678
16
1.337
1.746
2.120
2.583
2.921
55 1.297 1.673 2.004 2.396 2.668
17
1.333
1.740
2.110
2.567
2.898
60 1.296 1.671 2.000 2.390 2.660
18
1.330
1.734
2.101
2.552
2.878
65 1.295 1.669 1.997 2.385 2.654
19 1.328
1.729
2.093
2.539
2.861
70 1.294 1.667 1.994 2.381 2.648
20 1.325
1.725
2.086
2.528
2.845
75 1.293 1.665 1.992 2.377 2.643
21
1.323
1.721
2.080
2.518
2.831
80 1.292 1.664
1.990
2.374 2.639
22
1.321
1.717
2.074
2.508
2.819
85 1.292 1.663 1.988
2.371
2.635
23
1.319
1.714
2.069
2.500
2.807
90 1.291 1.662 1.987 2.368 2.632
24
1.318
1.711
2.064
2.492
2.797
95 1.291
1.661 1.985 2.366 2.629
25
1.316
1.708
2.060
2.485
2.787
100 1.290 1.660 1.984 2.364 2.626
26
1.315
1.706
2.056
2.479
2.779
110
1.289 1.659 1.982 2.361
2.621
27
1.314
1.703
2.052
2.473
2.771
120 1.289 1.658 1.980 2.358
2.617
28
1.313
1.701
2.048
2.467
2.763
130
1.288 1.657 1.978 2.355 2.614
29
1.311
1.699
2.045
2.462
2.756
140
1.288 1.656
1.977 2.353
2.611
30
1.310
1.697
2.042
2.457
2.750
150
1.287 1.655
1.976 2.351
2.609
31
1.309
1.696
2.040
2.453
2.744
00
1.282 1.645 1.960 2.326 2.576
32
1.309
1.694
2.037
2.449
2.738
33
1.308
1.692
2.035
2.445
2.733
34
1.307
1.691
2.032
2.441
2.728
35 1.306
1.690
2.030
2.438
2.724
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 7 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman