this is a statistics question

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fiind the confidence level of Tc c=.90 and n=23

Jun 22nd, 2015

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Find the critical value tc for the confidence level c=0.99 and sample size n=23
Note: Degrees of Freedom = (n-1) = 22, You may find Below table useful in Your studies
DOF Probability, p
0.1 0.05 0.01 0.001
1 6.31 12.71 63.66 636.62
2 2.92 4.3 9.93 31.6
3 2.35 3.18 5.84 12.92
4 2.13 2.78 4.6 8.61
5 2.02 2.57 4.03 6.87
6 1.94 2.45 3.71 5.96
7 1.89 2.37 3.5 5.41
8 1.86 2.31 3.36 5.04
9 1.83 2.26 3.25 4.78
10 1.81 2.23 3.17 4.59
11 1.8 2.2 3.11 4.44
12 1.78 2.18 3.06 4.32


13 1.77 2.16 3.01 4.22
14 1.76 2.14 2.98 4.14
15 1.75 2.13 2.95 4.07
16 1.75 2.12 2.92 4.02
17 1.74 2.11 2.9 3.97
18 1.73 2.1 2.88 3.92
19 1.73 2.09 2.86 3.88
20 1.72 2.09 2.85 3.85
21 1.72 2.08 2.83 3.82
22 1.72 2.07 2.82 3.79
23 1.71 2.07 2.82 3.77
24 1.71 2.06 2.8 3.75
highlight%2825%29 1.71 2.06 2.79 3.73
26 1.71 2.06 2.78 3.71
27 1.7 2.05 2.77 3.69
28 1.7 2.05 2.76 3.67
29 1.7 2.05 2.76 3.66
30 1.7 2.04 2.75 3.65

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Jun 22nd, 2015

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