Paired T Test Formula. Common applications of the paired sample t test include case control studies or repeated measures designs. The test statistic is calculated as.
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μ1 μ2 the two population means are equal h1. Please note that a pair of samples each of which are not from normal a distribution often yields differences that are normally distributed. Therefore it would not be advisable to use a paired t test where there were any extreme outliers.
μ1 μ2 the two population means are equal h1.
The t test formula is given. Where s a and s b are the standard deviation of the the two groups a and b respectively. Student pre module post module difference score score 1 18 22 4 2 21 25 4 3 16 17 1 4 22 24 2 5 19 16 3 6 24 29 5 7 17 20 3 8 21 23 2 9 23 19 4 10. Please note that a pair of samples each of which are not from normal a distribution often yields differences that are normally distributed.
