Two Sample T Test Confidence Interval Formula. X deinopis 10 26 and y menneus 9 02. The motivation for performing a two sample t test.
And the degrees of freedom n 1 is 29. Sample standard deviation as calculated for the test statistic. S1 2 n1 s22 n2 1 2.
And the degrees of freedom n 1 is 29.
T confidence interval formula confidence t alpha standard dev size the function uses the following arguments. Sample standard deviation as calculated for the test statistic. A two sample t test is used to test whether or not the means of two populations are equal. So a significance level of 0 05 is equal to a 95 confidence level.
