Student's t test.

The Student's t-test The t-test is used to test for the presence of a significant difference between the means of two samples. Each population is normally distributed. We make the assumption that the variance of the two populations is the same. The t-test answers the question: what is the likelihood of drawing 2 means as different as these from the same population? How to calculate the t statistic: First put your data into an excel worksheet like this: A C sample Measurements of ____________ Measurements of ____________ 1