12/29/2022 0 Comments Download xlstat for excel 2013Additionally, statistics majors tend to have the largest average salary. Overall, males tend to have higher average incomes across the majors. Importantly, the significant p-values indicate that our sample data provide strong enough evidence to conclude that the population means of these six groups are not equal. These means range from a low of $55,191 for female political science majors to a high of $77,743 for male statistics majors. The Summary table in the top portion displays mean incomes for our six groups. Males have a higher average income, and that effect is consistent (plus or minus random error) across majors. For example, gender’s main effect on average income does not change from one major to another. The main effects are the portion of the relationship between an independent variable and the dependent variable that does not change based on the values of the other variables in the model. Because the interaction effect is not significant, we can focus on only the main effects. On the other hand, the interaction effect is not significant because its p-value (0.151) is greater than our significance level. Note that these p-values are so low that Excel uses scientific notation to represent them. Because the p-values for both Gender and Major are less than our significance level, these factors are statistically significant. Interpreting Excel’s Two-Way ANOVA Resultsįirst, look in the P-value column in the ANOVA Source of Variation table at the bottom of the output. Change this value only when you have a specific reason for doing so.įor this example, the popup should look like this:
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