11:06 bartleby.com = bartleby е Q&A Math / Statistics / Q&A Lib... SaveConf. Interval Hoework (2) Protected... Step 2 So, a 1-0.95 0.05 The number of degrees of freedom are = df = 1000-1 = 999 Based on the provided information, the critical t-value for a 0.05 is t =1.962 ...Using t-table г1 LJ Step 3 Formula for confidence interval is, txs txs ,X + - Using all values, DISTRIBUTION area or MOst mmo probability 0 Prob pegec ant degrees of freedom RIGHT TAIL AREAS .10 .05 .025 (df) .010 .005 3.078 6.314 12.706 31.821 63.657 1.886 2.920 4.303 6.965 9.925 1.638 2.353 3.182 4.541 5.841 1.533 2.132 2.776 3.747 4.604 unc 1.476 2.015 2.571 3.365 4.032 1.440 1.943 2.447 3.143 3.707 1.415 1.895 2.365 2.998 3.499 1.397 1.860 2.306 2.896 3.355 1.383 1.833 2.262 2.821 3.250 types Conf 1.372 1.812 2.228 2.764 3.169 1.363 1.796 2.201 2.718 3.106 1.356 2.179 1.782 2.681 3.055 1.350 1.771 2.160 2.650 3.012 1.345 1.761 2.145 2.624 2.977 15 1.341 1.753 2.131 2.602 2.947 16 1.337 1.746 2.120 2.583 2.921 17 1.333 1.740 2.110 2.567 2.898 18 1.330 1.734 2.101 2.552 2.878 19 1.729 2.093 1.328 2.539 2.861 1.725 2.086 20 1.325 2.528 2.845 2.080 1.721 1.323 2.518 2.831 21 2.074 1.717 2.508 1.321 2.819 22 2.069 2.500 1.714 2.807 1.319 23 2.064 2.492 2.797 1.711 1.318 24 2.060 1.708 2.485 2.787 1.316 25 2.479 2.779 1.706 2.056 1.315 26 -2.052 2.473 2.771 1.703 1.314 27 2.048 2.763 2.467 1.701 1.313 28 2.462 2.756 2.045 1.699 1.311 29 2.750 2.457 2.042 1,697 1.310 30 2.704 2.423 2.021 1.684 1.303 40 2.680 2.405 2.010 1.677 1.299 49 2.403 2.678 2.009 1.676 1.299 50 2.660 2.390 2.000 1.671 1.296 60 2.617 2.358 1.980 1.658 1.289 120 2.576 2.326 1.96 1.645 1.282 8
11:06 bartleby.com = bartleby е Q&A Math / Statistics / Q&A Lib... SaveConf. Interval Hoework (2) Protected... Step 2 So, a 1-0.95 0.05 The number of degrees of freedom are = df = 1000-1 = 999 Based on the provided information, the critical t-value for a 0.05 is t =1.962 ...Using t-table г1 LJ Step 3 Formula for confidence interval is, txs txs ,X + - Using all values, DISTRIBUTION area or MOst mmo probability 0 Prob pegec ant degrees of freedom RIGHT TAIL AREAS .10 .05 .025 (df) .010 .005 3.078 6.314 12.706 31.821 63.657 1.886 2.920 4.303 6.965 9.925 1.638 2.353 3.182 4.541 5.841 1.533 2.132 2.776 3.747 4.604 unc 1.476 2.015 2.571 3.365 4.032 1.440 1.943 2.447 3.143 3.707 1.415 1.895 2.365 2.998 3.499 1.397 1.860 2.306 2.896 3.355 1.383 1.833 2.262 2.821 3.250 types Conf 1.372 1.812 2.228 2.764 3.169 1.363 1.796 2.201 2.718 3.106 1.356 2.179 1.782 2.681 3.055 1.350 1.771 2.160 2.650 3.012 1.345 1.761 2.145 2.624 2.977 15 1.341 1.753 2.131 2.602 2.947 16 1.337 1.746 2.120 2.583 2.921 17 1.333 1.740 2.110 2.567 2.898 18 1.330 1.734 2.101 2.552 2.878 19 1.729 2.093 1.328 2.539 2.861 1.725 2.086 20 1.325 2.528 2.845 2.080 1.721 1.323 2.518 2.831 21 2.074 1.717 2.508 1.321 2.819 22 2.069 2.500 1.714 2.807 1.319 23 2.064 2.492 2.797 1.711 1.318 24 2.060 1.708 2.485 2.787 1.316 25 2.479 2.779 1.706 2.056 1.315 26 -2.052 2.473 2.771 1.703 1.314 27 2.048 2.763 2.467 1.701 1.313 28 2.462 2.756 2.045 1.699 1.311 29 2.750 2.457 2.042 1,697 1.310 30 2.704 2.423 2.021 1.684 1.303 40 2.680 2.405 2.010 1.677 1.299 49 2.403 2.678 2.009 1.676 1.299 50 2.660 2.390 2.000 1.671 1.296 60 2.617 2.358 1.980 1.658 1.289 120 2.576 2.326 1.96 1.645 1.282 8
MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Topic Video
Question
How do they get that number from the t table if 1000-1=999 how do they figure 999 and the.025% my t table does not show the number they are getting which is 1.962 I’m getting 1.96
Transcribed Image Text:11:06
bartleby.com
= bartleby
е
Q&A
Math / Statistics / Q&A Lib...
SaveConf. Interval Hoework (2) Protected...
Step 2
So, a 1-0.95 0.05
The number of degrees of freedom are = df = 1000-1 = 999
Based on the provided information, the critical t-value for a
0.05
is
t =1.962 ...Using t-table
г1
LJ
Step 3
Formula for confidence interval is,
txs
txs
,X + -
Using all values,
Transcribed Image Text:DISTRIBUTION
area or
MOst
mmo
probability
0
Prob
pegec
ant
degrees of
freedom
RIGHT TAIL AREAS
.10
.05
.025
(df)
.010
.005
3.078
6.314
12.706
31.821
63.657
1.886
2.920
4.303
6.965
9.925
1.638
2.353
3.182
4.541
5.841
1.533
2.132
2.776
3.747
4.604
unc
1.476
2.015
2.571
3.365
4.032
1.440
1.943
2.447
3.143
3.707
1.415
1.895
2.365
2.998
3.499
1.397
1.860
2.306
2.896
3.355
1.383
1.833
2.262
2.821
3.250
types
Conf
1.372
1.812
2.228
2.764
3.169
1.363
1.796
2.201
2.718
3.106
1.356
2.179
1.782
2.681
3.055
1.350
1.771
2.160
2.650
3.012
1.345
1.761
2.145
2.624
2.977
15
1.341
1.753
2.131
2.602
2.947
16
1.337
1.746
2.120
2.583
2.921
17
1.333
1.740
2.110
2.567
2.898
18
1.330
1.734
2.101
2.552
2.878
19
1.729
2.093
1.328
2.539
2.861
1.725
2.086
20
1.325
2.528
2.845
2.080
1.721
1.323
2.518
2.831
21
2.074
1.717
2.508
1.321
2.819
22
2.069
2.500
1.714
2.807
1.319
23
2.064
2.492
2.797
1.711
1.318
24
2.060
1.708
2.485
2.787
1.316
25
2.479
2.779
1.706
2.056
1.315
26
-2.052
2.473
2.771
1.703
1.314
27
2.048
2.763
2.467
1.701
1.313
28
2.462
2.756
2.045
1.699
1.311
29
2.750
2.457
2.042
1,697
1.310
30
2.704
2.423
2.021
1.684
1.303
40
2.680
2.405
2.010
1.677
1.299
49
2.403
2.678
2.009
1.676
1.299
50
2.660
2.390
2.000
1.671
1.296
60
2.617
2.358
1.980
1.658
1.289
120
2.576
2.326
1.96
1.645
1.282
8
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