A new teaching method is tried in 102102 classes. It leads to improved scores in 6060 classes and no improvement in 4242 classes. At the 0.050.05 significance level, use the sign test to test the claim that improvements and no improvements are equally likely.

At the 0.050.05 significance level, there is insufficient evidence to support the claim that improvements and no improvements are not equally likely.

At the 0.050.05 significance level, there is sufficient evidence to support the claim that improvements and no improvements are not equally likely.

A new teaching method is tried in 102102 classes. It leads to imp...

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Steps in Hypothesis Testing: Videos & Practice Problems

A new teaching method is tried in 102102 classes. It leads to improved scores in 6060 classes and no improvement in 4242 classes. At the 0.050.05 significance level, use the sign test to test the claim that improvements and no improvements are equally likely.

A new teaching method is tried in $102$ classes. It leads to improved scores in $60$ classes and no improvement in $42$ classes. At the $0.05$ significance level, use the sign test to test the claim that improvements and no improvements are equally likely.