A researcher wants to know if the variability in test scores differs between two different teaching methods. In method A, 1313 students have a sample variance of 18.2 18.2 . In method B, 1111 students have a sample variance of 9.5 9.5 . At the 0.05 0.05 significance level, test the claim that the two methods have the same variance.

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Two Proportions
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Two Means - Unknown, Unequal Variance
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10. Hypothesis Testing for Two Samples

Two Variances and F Distribution

10. Hypothesis Testing for Two Samples

Two Variances and F Distribution: Videos & Practice Problems

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Problem 11Multiple Choice

A researcher wants to know if the variability in test scores differs between two different teaching methods. In method A, $13$ students have a sample variance of $18.2$ . In method B, $11$ students have a sample variance of $9.5$ . At the $0.05$ significance level, test the claim that the two methods have the same variance.

There is insufficient evidence to say the variances are different

There is sufficient evidence to say the variances are different

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