Homework Help is Here – Start Your Trial Now!
Math
Statistics
One-Way ANOVA The following data represent the Sales (in $1000) data gathered from a marketing efficacy study in Week 1 of December 2019 at a fast-food chain. Each row is an individual store that was randomly selected for this study. Small Medium Large 62.33 53.04 94.04 64.27 53.19 91.36 57.53 59.42 86.36 67.25 58.88 83.97 56.31 54.15 97.33 61.97 75.18 92.11 56.48 74.17 90.15 56.02 75.52 102.27 66.54 68.33 96.8 62.55 68.99 86.33 66.78 72.04 92.45 67.1 62.98 88.28 52.97 68.14 94.53 59.08 70.83 90.39 58.57 66.37 94.92 52.12 77.5 83.39 64.77 73.16 90.32 51.45 66.56 98.8 60.5 74.81 92.88 49.18 70.66 96.57 70.18 72.24 90.54 54.38 68.45 90.19 70.42 65.34 89.93 69.86 67.93 95.71 64.67 65.12   58.58 66.65   57.32 69.79   53.5 60.54   55.56 70.17   64.91     66.94     68.3     67.91     62.07     57.2     51.43     62.36     61.72     65.53     62.65     68.75     62.75     64.74     69.53     64.52     65.48     64.38

One-Way ANOVA The following data represent the Sales (in $1000) data gathered from a marketing efficacy study in Week 1 of December 2019 at a fast-food chain. Each row is an individual store that was randomly selected for this study. Small Medium Large 62.33 53.04 94.04 64.27 53.19 91.36 57.53 59.42 86.36 67.25 58.88 83.97 56.31 54.15 97.33 61.97 75.18 92.11 56.48 74.17 90.15 56.02 75.52 102.27 66.54 68.33 96.8 62.55 68.99 86.33 66.78 72.04 92.45 67.1 62.98 88.28 52.97 68.14 94.53 59.08 70.83 90.39 58.57 66.37 94.92 52.12 77.5 83.39 64.77 73.16 90.32 51.45 66.56 98.8 60.5 74.81 92.88 49.18 70.66 96.57 70.18 72.24 90.54 54.38 68.45 90.19 70.42 65.34 89.93 69.86 67.93 95.71 64.67 65.12   58.58 66.65   57.32 69.79   53.5 60.54   55.56 70.17   64.91     66.94     68.3     67.91     62.07     57.2     51.43     62.36     61.72     65.53     62.65     68.75     62.75     64.74     69.53     64.52     65.48     64.38

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

One-Way ANOVA
The following data represent the Sales (in $1000) data gathered from a marketing efficacy study in Week 1 of December 2019 at a fast-food chain.
Each row is an individual store that was randomly selected for this study.

Small Medium Large
62.33 53.04 94.04
64.27 53.19 91.36
57.53 59.42 86.36
67.25 58.88 83.97
56.31 54.15 97.33
61.97 75.18 92.11
56.48 74.17 90.15
56.02 75.52 102.27
66.54 68.33 96.8
62.55 68.99 86.33
66.78 72.04 92.45
67.1 62.98 88.28
52.97 68.14 94.53
59.08 70.83 90.39
58.57 66.37 94.92
52.12 77.5 83.39
64.77 73.16 90.32
51.45 66.56 98.8
60.5 74.81 92.88
49.18 70.66 96.57
70.18 72.24 90.54
54.38 68.45 90.19
70.42 65.34 89.93
69.86 67.93 95.71
64.67 65.12  
58.58 66.65  
57.32 69.79  
53.5 60.54  
55.56 70.17  
64.91    
66.94    
68.3    
67.91    
62.07    
57.2    
51.43    
62.36    
61.72    
65.53    
62.65    
68.75    
62.75    
64.74    
69.53    
64.52    
65.48    
64.38  

 

Use Excel to conduct a one-way ANOVA to determine if the group means are equal using a = 0.06. a. The one-way ANOVA test is used to compare mean sales for different market sizes here because Othere are two independent samples Othere are matched pair data Othere are more than two means to compare Create a side-by-side boxplot in Excel for these data. Use that and the numerical summary of sample data to answer the following questions. b. Compute the HighestS tan dardDeviation SmallestS tan dard Deviation decimal places) II (Rounded to 2
Transcribed Image Text:Use Excel to conduct a one-way ANOVA to determine if the group means are equal using a = 0.06. a. The one-way ANOVA test is used to compare mean sales for different market sizes here because Othere are two independent samples Othere are matched pair data Othere are more than two means to compare Create a side-by-side boxplot in Excel for these data. Use that and the numerical summary of sample data to answer the following questions. b. Compute the HighestS tan dardDeviation SmallestS tan dard Deviation decimal places) II (Rounded to 2
c. Based on your answer to previous part and rule of thumb, is the equal variance assumption violated? Yes O No, because the previous answer is smaller than 2. Though not specifically assessed here, you are encouraged to also check validity of the other assumptions and interpret the results. d. Based on the given information and plots, select ALL that are true for these data. Median sales is smallest for Small markets while it is highest for Large markets. The sample data contain at least one outlier. We can reasonably assume each population has a normal distribution because sampled data do not deviate much from a normal distribution. The samples are random and independent. We cannot assume each population has a normal distribution because samples do not have approximately a normal distributions. The sample data contain no outliers.
Transcribed Image Text:c. Based on your answer to previous part and rule of thumb, is the equal variance assumption violated? Yes O No, because the previous answer is smaller than 2. Though not specifically assessed here, you are encouraged to also check validity of the other assumptions and interpret the results. d. Based on the given information and plots, select ALL that are true for these data. Median sales is smallest for Small markets while it is highest for Large markets. The sample data contain at least one outlier. We can reasonably assume each population has a normal distribution because sampled data do not deviate much from a normal distribution. The samples are random and independent. We cannot assume each population has a normal distribution because samples do not have approximately a normal distributions. The sample data contain no outliers.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 12 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS