ANOVA - Hypothesis Testing Formulate H0 and H1 Select...

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Hypothesis Testing Hypothesis Testing Formulate H 0 and H 1 Choose Significance Level Select Appropriate Test Data Collection Determine Critical Value Compare the Probability Reject or FTR
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t-tests t-tests - - tests for significant differences between the means of TWO groups. Is there a significant difference between Soph. and Senior Perceptions of Education Quality? Analysis of Variance: ANOVA Analysis of Variance: ANOVA ANOVA ANOVA - can test for significant differences between the means of MORE THAN TWO groups. Is there a significant difference between Freshman, Sophomore, Junior, and Senior Perceptions of Education Quality?
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ANOVA Independent variable   Dependent  variable DV is metric IV is categorical (nonmetric) Used to analyze experimental data
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ANOVA Example A grocery store chain wanted to evaluate the price  sensitivity of sales of its store brand of orange juice.  24  of the chain’s stores in a certain region were chosen at  random to participate in an experimental study using the  following treatments: 1.  Store brand sold at regular price
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ANOVA - Hypothesis Testing Formulate H0 and H1 Select...

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