9. Which test would you use to compare the means of more than two groups?
A) One-sample t-test
B) Two-sample z-test
C) ANOVA (Analysis of Variance)
D) Chi-square test
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9. Which test would you use to compare the means of more than two groups?
A) One-sample t-test
B) Two-sample z-test
C) ANOVA (Analysis of Variance)
D) Chi-square test