A one-sample t-test is used to test whether the mean of a single population is equal to a specified value. For example, you might want to check if the average height of students in your class is ...

Assumptions for the one sample t test are as follows: The t test and the z test share a key similarity in that they are both used to compare means between one or two groups to make inferences about ...

The two-sample t-test is one of the most commonly used hypothesis tests in Six Sigma work. It is applied to compare the average difference between two groups. You use it to determine if the ...

This is a one sample test to compare mean peformance of Men and Women for an ... My Alternate hypothesis says the two means are not the same. since the average score of Men and Women are not the same, ...

Previously we have considered how to test the null hypothesis that there is no difference between the mean of a sample ... two, then the unequal variance test should be used. With a computer one can ...

A t-test measures the difference between the means of two ... one of many tests used for this purpose. Others may be more appropriate depending on the number of variables or the size of the sample.

This short course will cover the one sample t-test, the two sample t-test, matched-pairs t-test, one-way ANOVA (Analysis of Variance), two-way ANOVA and ANCOVA (Analysis of Covariance). These ...