State the hypothesis.

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Answer 1

Question

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

c.

To determine

Explain the conclusion about main and interaction effects.

d.

To determine

Interpret the p-value.

e.

To determine

Make interaction plot of the data and explain the plot.

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A researcher conducts a study examining how the brain chemical serotonin is related to aggression. One sample of rats serves as a control group and receives a placebo that does not affect normal levels of serotonin. A second sample of rats receives a drug that lowers brain levels of serotonin. Then the researcher records the number of aggressive responses each of the rats displays in a test. The sample statistics are as follows. Control: =n1=10 -x1=14 ss1 =180.5 Low Serotonin: n2=15 -x2=19 ss2=130.0 Does the drug have a significant effect on aggression? Use level of .05. Compute the 95% confidence interval estimate on the difference in the mean aggression between the control and the experiment condition. Interpret the result. Compute the effect size and interpret the result.

Answer 2

Question

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

c.

To determine

Explain the conclusion about main and interaction effects.

d.

To determine

Interpret the p-value.

e.

To determine

Make interaction plot of the data and explain the plot.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

c.

To determine

Explain the conclusion about main and interaction effects.

d.

To determine

Interpret the p-value.

e.

To determine

Make interaction plot of the data and explain the plot.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

c.

To determine

Explain the conclusion about main and interaction effects.

d.

To determine

Interpret the p-value.

e.

To determine

Make interaction plot of the data and explain the plot.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

c.

To determine

Explain the conclusion about main and interaction effects.

d.

To determine

Interpret the p-value.

e.

To determine

Make interaction plot of the data and explain the plot.

Answer 6

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

Answer 7

Chapter 11.6, Problem 28SE

a.

To determine

State the hypothesis.

Answer 8

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

Answer 9

b.

To determine

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

Answer 10

c.

To determine

Explain the conclusion about main and interaction effects.

Answer 11

c.

To determine

Explain the conclusion about main and interaction effects.

Answer 12

d.

To determine

Interpret the p-value.

Answer 13

d.

To determine

Interpret the p-value.

Answer 14

e.

To determine

Make interaction plot of the data and explain the plot.

Answer 15

e.

To determine

Make interaction plot of the data and explain the plot.

Answer 16

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Answer 17

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Answer 18

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Answer 19

Ch. 11.2 - Using the following Excel results: (a) What was...Ch. 11.2 - Using the following Excel results: (a) What was...Ch. 11.2 - In a one-factor ANOVA with sample sizes n1 = 5, n2...Ch. 11.2 - In a one-factor ANOVA with sample sizes n1 = 8, n2...Ch. 11.2 - Prob. 5SE Ch. 11.2 - Prob. 6SE Ch. 11.2 - Instructions for Exercises 11.5 through 11.8: Use...Ch. 11.2 - Prob. 8SE Ch. 11.3 - Consider a one-factor ANOVA with n1 = 9, n2 = 10,...Ch. 11.3 - Consider a one-factor ANOVA with n1 = 6, n2 = 5,...

State the hypothesis.

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State the hypothesis.

Use Excel data analysis to perform ANOVA with replication at α=0.05 .

Explain the conclusion about main and interaction effects.

Interpret the p-value.

Make interaction plot of the data and explain the plot.

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Chapter 11 Solutions