W5 Trying to Determine Which Statistic to Use

W5 Trying to Determine Which Statistic to Use - number in...

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Trying to Determine Which Statistic to Use Let’s try to narrow down and simplify which test statistic to use when we are given a situation description….the exercise description will tell us what is being asked for. Look for these clues: Does the description have "one population of samples" or "two populations of samples". ..and that would lead us to a z or t in both cases. If the description is providing a table or list of categories and each have a
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Unformatted text preview: number in that category, we are in chi-square, and those given numbers are "observed frequencies", and we are going to test them with equal expected frequencies. ANOVA is providing us to test three categories, but they are called "treatments", and we are testing the mean scores of those treatments. Finally, regression (this week) is asking for the coefficient of correlation....
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