A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper.\(\begin{array} { c c c c } \hline \text { No Music } & \text { Soft Rock } & \text { Classical } & \text { Jazz } \\ \hline 128 & 57 & 87 & 55 \\ 101 & 32 & 40 & 24 \\ 157 & 93 & 21 & 95 \\ 196 & 35 & 92 & 19 \\ 163 & 58 & 55 & 60 \\ 144 & 61 & 59 & 85 \\ 170 & 82 & 39 & 54 \\ \hline \end{array}\) -Which of the following can be concluded about this experiment?

A) There are differences in sales among the groups. B) There are no differences in sales among the groups. C) One group was superior to the other groups in sales. D) Two of the groups were better than the other groups in sales. A) There are differences in sales among the groups. B) There are no differences in sales among the groups. C) One group was superior to the other groups in sales. D) Two of the groups were better than the other groups in sales.

A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper.\(\begin{array} { c c c c } \hline \text { No Music } & \text { Soft Rock } & \text { Classical } & \text { Jazz } \\ \hline 128 & 57 & 87 & 55 \\ 101 & 32 & 40 & 24 \\ 157 & 93 & 21 & 95 \\ 196 & 35 & 92 & 19 \\ 163 & 58 & 55 & 60 \\ 144 & 61 & 59 & 85 \\ 170 & 82 & 39 & 54 \\ \hline \end{array}\) -The mean squares within groups (MSW) is

A) 727.155 B) 15,483.667 C) 21.293 D) 46,451.000 A) 727.155 B) 15,483.667 C) 21.293 D) 46,451.000

A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper.\(\begin{array} { c c c c } \hline \text { No Music } & \text { Soft Rock } & \text { Classical } & \text { Jazz } \\ \hline 128 & 57 & 87 & 55 \\ 101 & 32 & 40 & 24 \\ 157 & 93 & 21 & 95 \\ 196 & 35 & 92 & 19 \\ 163 & 58 & 55 & 60 \\ 144 & 61 & 59 & 85 \\ 170 & 82 & 39 & 54 \\ \hline \end{array}\) -The sum of squares total (SST) for this problem is

A) 17,451.714 B) 63,902.714 C) 21.293 D) 46,451.000 A) 17,451.714 B) 63,902.714 C) 21.293 D) 46,451.000

Exam 9: Analysis of Variance Anova: One-Factor Completely Randomized Design

A psychologist wishes to determine which of four diet plans works best. The psychologist randomly assigns 32 overweight clients to one of four diet plans: Life on Herbs (LOH), E-mail-A-Meal (EAM), Weight-Lookers (WLK), and Low-Carbs (LOC). The numbers represent weight loss in pounds for 3 months for each client. LOH EAM WLK LOC 14 11 10 25 19 15 5 18 12 9 6 24 9 19 11 29 14 12 4 17 15 10 5 20 18 20 4 23 8 8 3 27 -The sum of squares within groups (SSW) for this problem is

(Multiple Choice)

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Question 21

A psychologist wishes to determine which of four diet plans works best. The psychologist randomly assigns 32 overweight clients to one of four diet plans: Life on Herbs (LOH), E-mail-A-Meal (EAM), Weight-Lookers (WLK), and Low-Carbs (LOC). The numbers represent weight loss in pounds for 3 months for each client. LOH EAM WLK LOC 14 11 10 25 19 15 5 18 12 9 6 24 9 19 11 29 14 12 4 17 15 10 5 20 18 20 4 23 8 8 3 27 -One way to determine the effect size in ANOVA is

(Multiple Choice)

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Question 22

A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper. No Music Soft Rock Classical Jazz 128 57 87 55 101 32 40 24 157 93 21 95 196 35 92 19 163 58 55 60 144 61 59 85 170 82 39 54 -Which of the following can be concluded about this experiment?

(Multiple Choice)

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Question 23

If a three-group experiment is performed and the means for the three groups are analyzed with three t tests (Group 1 vs.Group 2, Group 2 vs.Group 3, Group 1 vs.Group 3), what is the probability of committing the Type I error?

(Multiple Choice)

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Question 24

A psychologist wishes to determine which of four diet plans works best. The psychologist randomly assigns 32 overweight clients to one of four diet plans: Life on Herbs (LOH), E-mail-A-Meal (EAM), Weight-Lookers (WLK), and Low-Carbs (LOC). The numbers represent weight loss in pounds for 3 months for each client. LOH EAM WLK LOC 14 11 10 25 19 15 5 18 12 9 6 24 9 19 11 29 14 12 4 17 15 10 5 20 18 20 4 23 8 8 3 27 -The sum of squares between groups (SSB) for this problem is

(Multiple Choice)

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Question 25

The derived F value in ANOVA is a _______ of variances.

(Multiple Choice)

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Question 26

A psychologist wishes to determine which of four diet plans works best. The psychologist randomly assigns 32 overweight clients to one of four diet plans: Life on Herbs (LOH), E-mail-A-Meal (EAM), Weight-Lookers (WLK), and Low-Carbs (LOC). The numbers represent weight loss in pounds for 3 months for each client. LOH EAM WLK LOC 14 11 10 25 19 15 5 18 12 9 6 24 9 19 11 29 14 12 4 17 15 10 5 20 18 20 4 23 8 8 3 27 -The mean squares within groups (MSW) is

(Multiple Choice)

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Question 27

A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper. No Music Soft Rock Classical Jazz 128 57 87 55 101 32 40 24 157 93 21 95 196 35 92 19 163 58 55 60 144 61 59 85 170 82 39 54 -The mean squares within groups (MSW) is

(Multiple Choice)

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Question 28

When an ANOVA is significant,

(Multiple Choice)

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Question 29

A consumer psychologist wishes to determine whether playing music increases sales. The owner plays no music, soft rock, classical, or jazz and notes the sales for 28 people under these conditions. The following numbers are in dollar amounts per shopper. No Music Soft Rock Classical Jazz 128 57 87 55 101 32 40 24 157 93 21 95 196 35 92 19 163 58 55 60 144 61 59 85 170 82 39 54 -The sum of squares total (SST) for this problem is

(Multiple Choice)

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Question 30

If a three-group experiment is performed and the means for the three groups are analyzed with three t tests (Group 1 vs.Group 2, Group 2 vs.Group 3, Group 1 vs.Group 3), what is the probability of committing the Type I error?

The derived F value in ANOVA is a _______ of variances.

When an ANOVA is significant,

A Gentle Introduction

Descriptive Statistics: Understanding Distributions of Numbers

Statistical Parameters: Measures of Central Tendency and Variation

Standard Scores, the Z Distribution, and Hypothesis Testing

Inferential Statistics: The Controlled Experiment, Hypothesis Testing, and the Z Distribution

An Introduction to Correlation and Regression

The T Test for Independent Groups

The T Test for Dependent Groups

After a Significant Analysis of Variance: Multiple Comparison Tests

Analysis of Variance Anova: One-Factor Repeated-Measures Design

Analysis of Variance: Two-Factor Completely Randomized Design

Post Hoc Analysis of Factorial Anova

Factorial Anova: Additional Designs

Nonparametric Statistics: The Chi-Square Test

Other Statistical Parameters and Tests

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