Question: The following Excel output for Î± = 0.05 summarizes a portion of the results for a two-way ANOVA test without interaction where factor A (column)

The following Excel output for Î± = 0.05 summarizes a portion of the results for a two-way ANOVA test without interaction where factor A (column) represents three income categories (low, medium, high), factor B (rows) consists of three different kinds of political parties (Democrat, Republican, Independent), and the variable measured was the amount (in $) contributed to the political party during the 2008 presidential election.

a. Find the missing values in the ANOVA table.
b. At the 5% significance level, can you conclude that average contributions differ by political party?
c. At the 5% significance level, can you conclude that average contributions differ by income level?

Source of Variation Rows | 2541 6.67 | 2 | MSB= ? | Factor ? | 0.0990 | 6.944 Columns | 42916.67 | 2 | MSA= ? | Fa = ? | 0.0457 | 6.944 Error SS df MS p-value Fcrit ctor A 11666.67 4 MSE-7 Total 80000 8

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a Source of Variation SS df MS F Pvalue F crit 5 Rows 2541667 2 1270834 436 0099 6944 Col... View full answer

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