document.write( "Question 1193824: A Two-Way ANOVA Summary Table is shown below.
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document.write( "Source
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document.write( "SS d.f. MS F
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document.write( "Factor A 9.42 2 4.71 2.77
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document.write( "Factor B 15.10 2 7.55 4.44
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document.write( "Interaction A x B 10.34 4 2.58 1.52
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document.write( "Within (error) 45.90 27 1.7
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document.write( " Total 80.75 35
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document.write( " The critical value for the F test using = 0.05, d.f.N. = 2, and d.f.D = 27 is 3.35. Then,\r
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document.write( "A. only the null hypothesis concerning Factor A should be rejected.
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document.write( "B.only the null hypothesis concerning Factor B should be rejected.
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document.write( "C. only the null hypothesis concerning Factor A and the Interaction (AxB) effect should be rejected.
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document.write( "D. all of the null hypotheses should be accepted. \n" );
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Algebra.Com's Answer #848565 by parmen(42)![]() ![]() ![]() You can put this solution on YOUR website! **1. Understand the Null Hypotheses**\r \n" ); document.write( "\n" ); document.write( "* **Factor A:** There is no significant main effect of Factor A on the dependent variable. \n" ); document.write( "* **Factor B:** There is no significant main effect of Factor B on the dependent variable. \n" ); document.write( "* **Interaction (A x B):** There is no significant interaction effect between Factor A and Factor B on the dependent variable.\r \n" ); document.write( "\n" ); document.write( "**2. Compare F-statistics to Critical Value**\r \n" ); document.write( "\n" ); document.write( "* **Factor A:** F = 2.77 \n" ); document.write( "* **Factor B:** F = 4.44 \n" ); document.write( "* **Interaction (A x B):** F = 1.52 \n" ); document.write( "* **Critical Value:** F = 3.35\r \n" ); document.write( "\n" ); document.write( "* **Decision Rule:** Reject the null hypothesis if the calculated F-statistic is greater than the critical value.\r \n" ); document.write( "\n" ); document.write( "**3. Make Decisions**\r \n" ); document.write( "\n" ); document.write( "* **Factor A:** 2.77 < 3.35. **Do not reject the null hypothesis.** \n" ); document.write( "* **Factor B:** 4.44 > 3.35. **Reject the null hypothesis.** \n" ); document.write( "* **Interaction (A x B):** 1.52 < 3.35. **Do not reject the null hypothesis.**\r \n" ); document.write( "\n" ); document.write( "**Conclusion:**\r \n" ); document.write( "\n" ); document.write( "* **Only the null hypothesis concerning Factor B should be rejected.**\r \n" ); document.write( "\n" ); document.write( "**Therefore, the correct answer is B.** \r \n" ); document.write( "\n" ); document.write( "This means there is sufficient evidence to suggest that Factor B has a significant main effect on the dependent variable, while the main effect of Factor A and the interaction effect between A and B are not statistically significant at the 0.05 level. \n" ); document.write( " \n" ); document.write( " |