A researcher wants to see if the mean family size is in fact smaller in the West

Question

A researcher wants to see if the mean family size is in fact smaller in the West than the overall mean family size in the South. Will her t-test be an inclusive or independent t-test? Explain. In the US population. Native Americans are more likely than White Americans to hold pro-environmental attitudes. However, Jack's sample of 50 Native American respondents in his survey is too small to claim that the difference is statistically significant. If he concludes that Native Americans and White Americans have the same level of pro-environmental attitudes, then what kind of error is he committing? Type I or Type II? Explain

Explanation / Answer

Independent t test

The independent t-test, also called the two sample t-test, independent-samples t-test or student's t-test, is an inferential statistical test that determines whether there is a statistically significant difference between the means in two unrelated groups.

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