A psychologist studying maze learning in rats wants to determine if diet or the environment in...
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A psychologist studying maze learning in rats wants to determine if diet or the environment in which rats are raised affects the ability of rats to learn a maze. He randomly assigns rats to either a high protein diet or a low protein diet, and he raises the rats either alone in individual cages or in colonies with large numbers of other rats. Thus, one independent variable in this project is the type of diet, while the other independent variable is the type of environment in which the rats are raised. The dependent variable is the number of trials it takes each rat to learn a complex maze. Data collected are shown below. 67 68 70 Raised 62 alone 65 Raised . in a colony Col Total 45 44 45 39 44 43 Low Protein Diet X= X² = X= ☐ x²= D x. = C₁ X²: C1 = 43 32 38 32 37 High Protein Diet X= 0x²= 28 24 27 25 29 X= 0x²= ☐ X₁₂ = X²: C2 = Row Total Complete the source table and answer the following questions. Source Table - Maze Learning Data = X₁₁ X² = Y1 ☐ X₁ = 12 X₁₂ X² = 12 X = 0x²= Source Columns Rows Interaction Within Total SS 1. Compute the SStotal = 2. Compute the SSwg 3. Compute the SSr= = 4. Compute the SSc = 5. Compute the SSrXc = 6. Compute degrees of freedom. a. dftotal = = b. dfwg= c. dfr = d. dfc = e. dfrXc= 7. Compute the MSwg = df MS F р 8. Compute the MSr = 9. Compute the MSc = 10. Compute the MSrXc = 11. Compute the F ratio for the rows. Fr= 12. Compute the F ratio for the columns. Fc = 13. Compute the F ratio for the interaction. FrXc = 14. Compute the Critical Value of F for rows= a. Is the computed F ratio for rows significant? 15. Compute the Critical Value of F for columns= a. Is the computed F ratio for columns significant? 16. Compute the Critical Value of F for the interaction a. Is the computed F ratio for the interaction significant? 17. Given the significance of the F ratios you just computed, what conclusions can you make about the different independent variables in this experiment? A psychologist studying maze learning in rats wants to determine if diet or the environment in which rats are raised affects the ability of rats to learn a maze. He randomly assigns rats to either a high protein diet or a low protein diet, and he raises the rats either alone in individual cages or in colonies with large numbers of other rats. Thus, one independent variable in this project is the type of diet, while the other independent variable is the type of environment in which the rats are raised. The dependent variable is the number of trials it takes each rat to learn a complex maze. Data collected are shown below. 67 68 70 Raised 62 alone 65 Raised . in a colony Col Total 45 44 45 39 44 43 Low Protein Diet X= X² = X= ☐ x²= D x. = C₁ X²: C1 = 43 32 38 32 37 High Protein Diet X= 0x²= 28 24 27 25 29 X= 0x²= ☐ X₁₂ = X²: C2 = Row Total Complete the source table and answer the following questions. Source Table - Maze Learning Data = X₁₁ X² = Y1 ☐ X₁ = 12 X₁₂ X² = 12 X = 0x²= Source Columns Rows Interaction Within Total SS 1. Compute the SStotal = 2. Compute the SSwg 3. Compute the SSr= = 4. Compute the SSC = 5. Compute the SSrXc = 6. Compute degrees of freedom. a. dftotal = = b. dfwg= c. dfr = d. dfc = e. dfrXc= 7. Compute the MSwg = df MS F р 8. Compute the MSr = 9. Compute the MSc = 10. Compute the MSrXc = 11. Compute the F ratio for the rows. Fr= 12. Compute the F ratio for the columns. Fc = 13. Compute the F ratio for the interaction. FrXc = 14. Compute the Critical Value of F for rows= a. Is the computed F ratio for rows significant? 15. Compute the Critical Value of F for columns= a. Is the computed F ratio for columns significant? 16. Compute the Critical Value of F for the interaction a. Is the computed F ratio for the interaction significant? 17. Given the significance of the F ratios you just computed, what conclusions can you make about the different independent variables in this experiment? A psychologist studying maze learning in rats wants to determine if diet or the environment in which rats are raised affects the ability of rats to learn a maze. He randomly assigns rats to either a high protein diet or a low protein diet, and he raises the rats either alone in individual cages or in colonies with large numbers of other rats. Thus, one independent variable in this project is the type of diet, while the other independent variable is the type of environment in which the rats are raised. The dependent variable is the number of trials it takes each rat to learn a complex maze. Data collected are shown below. 67 68 70 Raised 62 alone 65 Raised . in a colony Col Total 45 44 45 39 44 43 Low Protein Diet X= X² = X= ☐ x²= D x. = C₁ X²: C1 = 43 32 38 32 37 High Protein Diet X= 0x²= 28 24 27 25 29 X= 0x²= ☐ X₁₂ = X²: C2 = Row Total Complete the source table and answer the following questions. Source Table - Maze Learning Data = X₁₁ X² = Y1 ☐ X₁ = 12 X₁₂ X² = 12 X = 0x²= Source Columns Rows Interaction Within Total SS 1. Compute the SStotal = 2. Compute the SSwg 3. Compute the SSr= = 4. Compute the SSc = 5. Compute the SSrXc = 6. Compute degrees of freedom. a. dftotal = = b. dfwg= c. dfr = d. dfc = e. dfrXc= 7. Compute the MSwg = df MS F р 8. Compute the MSr = 9. Compute the MSc = 10. Compute the MSrXc = 11. Compute the F ratio for the rows. Fr= 12. Compute the F ratio for the columns. Fc = 13. Compute the F ratio for the interaction. FrXc = 14. Compute the Critical Value of F for rows= a. Is the computed F ratio for rows significant? 15. Compute the Critical Value of F for columns= a. Is the computed F ratio for columns significant? 16. Compute the Critical Value of F for the interaction a. Is the computed F ratio for the interaction significant? 17. Given the significance of the F ratios you just computed, what conclusions can you make about the different independent variables in this experiment? A psychologist studying maze learning in rats wants to determine if diet or the environment in which rats are raised affects the ability of rats to learn a maze. He randomly assigns rats to either a high protein diet or a low protein diet, and he raises the rats either alone in individual cages or in colonies with large numbers of other rats. Thus, one independent variable in this project is the type of diet, while the other independent variable is the type of environment in which the rats are raised. The dependent variable is the number of trials it takes each rat to learn a complex maze. Data collected are shown below. 67 68 70 Raised 62 alone 65 Raised . in a colony Col Total 45 44 45 39 44 43 Low Protein Diet X= X² = X= ☐ x²= D x. = C₁ X²: C1 = 43 32 38 32 37 High Protein Diet X= 0x²= 28 24 27 25 29 X= 0x²= ☐ X₁₂ = X²: C2 = Row Total Complete the source table and answer the following questions. Source Table - Maze Learning Data = X₁₁ X² = Y1 ☐ X₁ = 12 X₁₂ X² = 12 X = 0x²= Source Columns Rows Interaction Within Total SS 1. Compute the SStotal = 2. Compute the SSwg 3. Compute the SSr= = 4. Compute the SSC = 5. Compute the SSrXc = 6. Compute degrees of freedom. a. dftotal = = b. dfwg= c. dfr = d. dfc = e. dfrXc= 7. Compute the MSwg = df MS F р 8. Compute the MSr = 9. Compute the MSc = 10. Compute the MSrXc = 11. Compute the F ratio for the rows. Fr= 12. Compute the F ratio for the columns. Fc = 13. Compute the F ratio for the interaction. FrXc = 14. Compute the Critical Value of F for rows= a. Is the computed F ratio for rows significant? 15. Compute the Critical Value of F for columns= a. Is the computed F ratio for columns significant? 16. Compute the Critical Value of F for the interaction a. Is the computed F ratio for the interaction significant? 17. Given the significance of the F ratios you just computed, what conclusions can you make about the different independent variables in this experiment?
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