In: Statistics and Probability
Identify which graphical display might be appropriate in each case.
The graphs you may choose from are:
Bar chart |
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Pie chart |
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Side-by-side bar chart |
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Segmented bar chart |
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Histogram |
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Dotplot |
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Side-by-side boxplots |
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Scatterplot The statistical procedures to choose from are: Chi-squares for association Z-test for one sample mean Linear regression and correlation Student-test for mean differences Z test for single proportion ANOVA Z test for difference between means Chi-squares goodness of fit |
Scenario |
Graphic |
Statistical Procedure |
1.Investigate the number of months in your community during the last year |
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2.Investigate the relationship between GPA and SAT scores for stem related majors |
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3.Compare the annual incomes among engineering, science, and business majors |
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4.Compare the percentages of commuters among freshmen, sophomores, juniors, and seniors |
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5.Investigate the favorite method of travel(plane, auto, train) .among Seniors |
Scenario | Graphic | Statistical Procedure |
1.Investigate the number of months in your community during the last year | Bar chart | Chi-squares goodness of fit |
2.Investigate the relationship between GPA and SAT scores for stem related majors | Scatterplot | Linear regression and correlation |
3.Compare the annual incomes among engineering, science, and business majors | Side-by-side boxplots | ANOVA |
4.Compare the percentages of commuters among freshmen, sophomores, juniors, and seniors | Side-by-side boxplots | ANOVA |
5.Investigate the favorite method of travel(plane, auto, train) .among Seniors | Bar chart | Chi-squares goodness of fit |