Find the critical t value that corresponds to 50% confidence, assume 26 degrees of freedom.
Find the critical t value that corresponds to 50% confidence, assume 26 degrees of freedom.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.
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chapter 9 question 14
I need help with part D, I listed it first and gave my previous answers at the bottom. I attached my table
D. Find the critical t value that corresponds to 50% confidence, assume 26 degrees of freedom.
A t value right tail .10 with 25 degrees of freedom= 1.316
B t value suchat the area in the rt is 0.15 and 20 degrees of freedom= 1.064
c find the t value such that the area left of the value is 0.02 with 5 degrees of freedom. =-2.757
Transcribed Image Text:df
0.25
0.20
0.15
0.10
0.05
0.025
0.02
0.01
0.005
0.0025
0.001
0.0005
1
1.000
1.376
1.963
3.078
6.314
12.706
15.894
31.821
63.657
127.321
318.309
636.619
4.849
22.327
10.215
2
0.816
1.061
0.978
1.386
1.886
2.920
4.303
6.965
9.925
5.841
14.089
31.599
12.924
3.482
2.999
2.757
3
0.765
4
0.741
1.250
1.638
2.353
3.182
2.776
4.541
7.453
1.533
1.476
0.941
1.190
2.132
3.747
4.604
5.598
8.610
7.173
5.893
5
0.727
0.920
1.156
2.015
2.571
3.365
4.032
4.773
6.869
6.
0.718
0.906
1.134
1.440
1.943
2.447
2.612
3.143
2.998
3.707
4.317
5.208
5.959
5.408
7
0.711
0.896
1.119
1.415
1.895
2.365
2.517
3.499
4.029
4.785
0.706
9
0.703
0.889
0.883
1.397
1.383
2.449
2.398
2.896
2.821
1.108
1.860
2.306
2.262
3.355
3.250
3.833
4.501
4.297
5.041
4.781
1.100
1.833
1.812
3.690
3.581
10
0.700
0.879
1.093
1.372
2.228
2.359
2.764
3.169
4.144
4.587
11
0.697
0.876
1.088
1.363
1.796
2.201
2.328
2.718
3.106
3.497
4.025
4.437
12
0.695
0.873
1.083
1.356
1.782
2.179
2.303
2.681
3.055
3.428
3.930
3.852
4.318
13
14
0.694
0.692
0.870
1.079
1.350
1.771
2.160
2.145
2.282
2.650
2.624
3.012
2.977
3.372
4.221
0.868
0.866
1.076
1.345
1.761
2.264
3.326
3.787
4.140
15
0.691
1.074
1.341
1.753
2.131
2.249
2.602
2.947
3.286
3.733
4.073
Transcribed Image Text:1.071
1.069
16
1.746
0.690
0.689
0.865
0.863
1.337
2.120
2.235
2.224
2.583
2.921
3.252
3.686
4.015
1.333
1.330
2.898
3.965
3.922
17
1.740
2.110
2.567
3.222
3.646
18
0.688
0.862
1.067
1.734
2.101
2.214
2.552
2.878
3.197
3.610
19
0.688
0.861
1.066
1.328
1.729
2.093
3.579
2.205
2.197
2.539
2.861
3.174
3.883
20
0.687
0.860
1.064
1.325
1.725
2.086
2.528
2.845
3.153
3.552
3.850
0.859
0.858
2.518
2.508
21
0.686
1.063
1.323
1.721
2.080
2.074
2.069
2.189
2.831
3.135
3.527
3.819
22
3.792
0.686
0.685
1.061
1.060
1.321
1.717
2.183
2.819
3.119
3.104
3.505
23
0.858
1.319
1.714
2.177
2.500
2.807
2.797
3.485
3.467
3.768
24
0.685
0.684
0.857
1.059
1.318
1.316
1.711
2.064
2.172
2.492
3.091
3.745
25
0.856
1.058
1.708
2.060
2.167
2.485
2.787
3.078
3.450
3.725
0.856
2.779
2.771
26
0.684
1.058
1.315
1.706
2.056
2.162
2.479
3.067
3.435
3.707
27
0.684
0.855
1.057
1.314
1.703
2.052
2.158
2.473
3.057
3.421
3.690
28
29
0.683
0.855
0.854
1.056
1.055
1.313 1.701
1.311
2.048
2.045
2.042
2.154
2.150
2.467
2.462
2.763
2.756
3.047
3.038
3.408
3.674
0.683
0.683
1.699
1.697
3.396
3.385
3.659
3.646
30
0.854
1.055
1.310
2.147
2.457
2.750
3.030
0.853
0.853
31
0.682
1.054
1.309
1.696
2.040
2.144
2.453
2.744
3.022
3.015
3.375
3.365
3.633
1.309
1.308
1.307
2.037
2.035
2.032
2.449
2.445
3.622
3.611
32
0.682
1.054
1.694
2.141
2.738
0.853
33
34
0.682
1.053
1.052
1.692
1.691
2.138
2.733
3.008
3.356
3.348
0.682
0.852
2.136
2.441
2.728
3.002
3.601
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