Use the data below quest Group1 (n=16) averaged 27.31 jumps (SD=10.18) in a physical exam and Group 2 (n=11) averaged 11.91 jumps (SD=9.74). What is the critical t-value for the number of degrees of freedom from above at the alpha=.05 level (two-tailed test)?

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Use the data below to answer the
Group1 (n-16) averaged 27.31 jumps (SD=10.18) in a physical exam and Group 2 (n=11) averaged 11.91 jumps (SD-9.74).
What is the critical t-value for the number of degrees of freedom from above at the alpha=.05 level (two-tailed test)?
Table T Critical Values of the t Distribution
df
1
2
234
599
6
7
8
a
9
One-Tail = .4 .25
Two-Tail = .8
1.5
10
11
12
13
14
15
16
17
0.325
0.289
0.277
0.271
0.267
0.265
0.263
0.262
0.261
0.260
0.260
0.259
0.259
0.258
0.258
0.258
0.257
.1
.2
.05
.1
1.000
0.816 1.886
0.765 1.638 2.353
0.741
1.533 2.132
.025
.05
3.078 6.314 12.706
2.920 4.303
.01
.02
31.821
6.965
3.182 4.541
2.776 3.747
.005
.01
.0025
.005
63.657
9.925
5.841
4.604 5.598
127.32
4.773
0.727 1.476 2.015 2.571 3.365 4.032
0.718 1.440 1.943 2.447 3.143 3.707 4.317
0.711 1.415 1.895 2.365 2.998 3.499
0.706 1.397 1.860 2.306 2.896 3.355 3.833
0.703 1.383 1.833 2.262 2.821
4.029
3.250
.001
.002
14.089
22.327
7.453 10.214
7.173
318.31
5.893
5.208
4.785
4.501
3.690 4.297
3.286
3.252
3.222
2.764
3.169
3.581 4.144
0.700 1.372 1.812 2.228
0.697 1.363 1.796
2.718
3.106
3.497
4.025
3.428
3.930
3.372
3.852
3.787
2.201
0.695 1.356 1.782 2.179 2.681 3.055
0.694 1.350 1.771 2.160 2.650 3.012
0.692 1.345 1.761 2.145 2.624 2.977 3.326
0.691 1.341 1.753 2.131 2.602 2.947
0.690 1.337 1.746 2.120 2.583
0.689 1.333 1.740 2.110
2.921
2.567
2.898
3.733
3.686
3.646
.0005
.001
636.62
31.598
12.924
8.610
6.869
5.959
5.408
5.041
4.781
4.587
4.437
4.318
4.221
4.140
4.073
4.015
3.965
Transcribed Image Text:Use the data below to answer the Group1 (n-16) averaged 27.31 jumps (SD=10.18) in a physical exam and Group 2 (n=11) averaged 11.91 jumps (SD-9.74). What is the critical t-value for the number of degrees of freedom from above at the alpha=.05 level (two-tailed test)? Table T Critical Values of the t Distribution df 1 2 234 599 6 7 8 a 9 One-Tail = .4 .25 Two-Tail = .8 1.5 10 11 12 13 14 15 16 17 0.325 0.289 0.277 0.271 0.267 0.265 0.263 0.262 0.261 0.260 0.260 0.259 0.259 0.258 0.258 0.258 0.257 .1 .2 .05 .1 1.000 0.816 1.886 0.765 1.638 2.353 0.741 1.533 2.132 .025 .05 3.078 6.314 12.706 2.920 4.303 .01 .02 31.821 6.965 3.182 4.541 2.776 3.747 .005 .01 .0025 .005 63.657 9.925 5.841 4.604 5.598 127.32 4.773 0.727 1.476 2.015 2.571 3.365 4.032 0.718 1.440 1.943 2.447 3.143 3.707 4.317 0.711 1.415 1.895 2.365 2.998 3.499 0.706 1.397 1.860 2.306 2.896 3.355 3.833 0.703 1.383 1.833 2.262 2.821 4.029 3.250 .001 .002 14.089 22.327 7.453 10.214 7.173 318.31 5.893 5.208 4.785 4.501 3.690 4.297 3.286 3.252 3.222 2.764 3.169 3.581 4.144 0.700 1.372 1.812 2.228 0.697 1.363 1.796 2.718 3.106 3.497 4.025 3.428 3.930 3.372 3.852 3.787 2.201 0.695 1.356 1.782 2.179 2.681 3.055 0.694 1.350 1.771 2.160 2.650 3.012 0.692 1.345 1.761 2.145 2.624 2.977 3.326 0.691 1.341 1.753 2.131 2.602 2.947 0.690 1.337 1.746 2.120 2.583 0.689 1.333 1.740 2.110 2.921 2.567 2.898 3.733 3.686 3.646 .0005 .001 636.62 31.598 12.924 8.610 6.869 5.959 5.408 5.041 4.781 4.587 4.437 4.318 4.221 4.140 4.073 4.015 3.965
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