An independent samples t-test compares the means for two groups.

 

Step 2 of hypothesis testing involves reviewing the assumptions of the test you selected. Discuss the three assumptions of the t-test. Provide an example of the assumption that is not robust to violations and a situation when the assumption is violated.

There are three main types of t-test:

  • An Independent Samples ttest compares the means for two groups.
  • A Paired sample ttest compares means from the same group at different times (say, one year apart).
  • A One sample ttest tests the mean of a single group against a known mean.There are three main types of t-test:

You may choose anyone you may like to write about.

Please cite any and all references used.

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