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Been quite a few years since I have done ANY real stats analysis, so I'm not completely certain that I am interpreting my results correctly.
I am trying to determine if two sets of data are the same, using Minitab. The results are:
Two-Sample T-Test and CI: Inside, Outside
Two-sample T for Inside vs Outside
N Mean StDev SE Mean
Inside 10 0.730 0.192 0.061
Outside 10 0.906 0.132 0.042
Difference = μ (Inside) - μ (Outside)
Estimate for difference: -0.1760
95% CI for difference: (-0.3308, -0.0212)
T-Test of difference = 0 (vs ≠): T-Value = -2.39 P-Value = 0.028 DF = 18
Both use Pooled StDev = 0.1648
Based on the above, am I correct to assume that since both the lower and upper limit of the 95% CI is < 0, that this supports the null hypothesis (i.e. Inside and Outside are the same)?