QBA comp proj 1

QBA comp proj 1 - If so, explain how you can tell. Are...

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Project 1 QBA Crixell TH 2:00 2. What do these graphical representations tell us about the data? The largest number of CEOs earn between 200 and 400 thousand dollars. It is positively skewed. 3. Mean: 404.52 thousand Median: 350.00 thousand Mode: 291.00 thousand What is the appropriate measure of central tendency given the data and why? The median is most appropriate because it is quantitative data which is skewed. 4. Standard Deviation: 218.67 thousand Variance: 47,817.95 thousand Coefficient of variation: 54.06% Semi-interquartile range: 143.875 thousand What is the appropriate measure of dispersion given the data and why? What does the coefficient of variation tell us about the annual salaries? The appropriate measure of dispersion is the semi-interquartile range because the data is slightly skewed. The coefficient of variation tells us there is a wide dispersion between the salaries relative to the mean. 5. Explain what the boxplot tells us about the annual salaries of CEOs. Is the data skewed?
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Unformatted text preview: If so, explain how you can tell. Are there any outliers? What are they? Provide a possible explanation for the outliers. The boxplot tells us that the data is positively skewed. The median is less than the mean, and there is an outlier. One CEO earned 1103 thousand dollars annually. He could have been highly qualified for the job, or there was a mistake in reporting his salary. 6. How are the ages distributed? What is the skewness of the ages of CEOs? What does this tell us about the data? The ages are almost symmetrical, with a slight positive skew. Most CEOs are between 45 and 60 years old. 7. Discuss the relationship between CEO age and salary. Is there a relationship? Do older CEOs make more money than the younger CEOs? I do not think there is a relationship between age and salary. If anything, there is a very weak direct correlation. A few of the oldest CEOs make less than the youngest and vice versa....
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This note was uploaded on 05/07/2008 for the course QBA 1302 taught by Professor Crixell during the Spring '08 term at Baylor.

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QBA comp proj 1 - If so, explain how you can tell. Are...

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