Posted: September 29th, 2016

The researchers stated that the participants in the intervention group reported a reduction in mobility difﬁculty at week 12. Was this result statistically signiﬁcant, and if so at what probability?

4. If the researchers had set the level of signiﬁcance or α = 0.01, would the results of p = 0.001 still be statistically signiﬁcant? Provide a rationale for your answer.

5. If F(3, 60) = 4.13, p = 0.04, and α = 0.01, is the result statistically signiﬁ cant? Provide a rationale for your answer. Would the null hypothesis be accepted or rejected?

6. Can ANOVA be used to test proposed relationships or predicted correlations between variables in a single group? Provide a rationale for your answer.

7. If a study had a result of F(2, 147) = 4.56, p = 0.003, how many groups were in the study, and what was the sample size?

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