A researcher tracked depression symptoms in new mothers from the USA, Mexico, and Canada. Determine if there are any differences in the average number of depressive symptoms between the three countries. Conduct an ANOVA test using alpha = .05 and the eight steps of hypothesis testing. Include the full source table in step 5. NOTE: Conduct a post-hoc test even if you fail to reject the null.                                                             USA Mexico Canada 15 15 12 14 17 10 13 14 12 14 15 11 13 19 9 15 18 8 16 16 11

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A:

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Q: What is the null hypothesis for the study?

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