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# A researcher claims that the variation in the salaries of elementary school teachers is greater than...

A researcher claims that the variation in the salaries of elementary school teachers is greater than the variation in the salaries of secondary school teachers. A random sample of the salaries of 30 elementary school teachers has a variance of $8,208, and a random sample of the salaries of 30 secondary school teachers has a variance of$3,817. At α = 0.05, can the researcher conclude that the variation in the elementary school teachers’ salaries is greater than the variation in the secondary school teachers’ salaries? Use the P-value method.

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##### 12: A researcher is interested in whether salaries for middle school teachers were less than salaries...
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