# t-Test of Two Samples

Using the Data Collection attached, perform the following statistical operations and compile your results in a Microsoft Word document:

? State a research (non-directional) hypothesis and a null hypothesis about the populations

? Determine the cutoff sample score of t at ±=.05

? Calculate a mean and variance for each sample of raw scores

? Calculate the pooled variance, the variance for each comparison distribution, and then the standard error term

? Determine the obtained value of t

? Conduct the hypothesis test

? Interpret and report on your findings (in English and statistical notation)

https://brainmass.com/statistics/students-t-test/t-test-of-two-samples-305314

#### Solution Summary

The solution provides step-by-step method of performing a two-tailed hypothesis t-test of two samples. All the steps of hypothesis testing (formulation of null and alternate hypotheses, selection of significance level, choosing the appropriate test-statistic, decision rule, calculation of test-statistic and conclusion) have been explained and the statistical analysis has been shown in details. The calculations have also been shown in EXCEL for better understanding.