Free Professional Development

Or

Author:
Bob Kibler

You will be able to:

- Test claims that compare an average value from 2 independent populations
- determine if a z-test or t-test is the appropriate technique
- the test statistic in a z-test and a t-test are obtained in similar ways, but how the critical value is determined is different
- summarize the results obtained in a non-statistical way

NOTES

- Testing 2 samples follows the same 5 steps as testing 1 sample
- The type of test (z or t) is determined based on the sample size and whether or not the standard deviation of the population is known
- It is important to summarize the results in a non-statistical (easy to understand) way

Tutorial