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Unformatted text preview: D) The data are not normal Problem Set #4 1. A regression of test scores (TS, measured in points) on age (measured in years) using a random sample of high school students aged 15-18 yields the following: One 15 year old student included in the sample received an actual test score of 712. What is the residual associated with this observation in the data set? 2. A researcher is interested in the relationship between hourly earnings and years of education. Data was collected from 100 individuals. Average hourly earnings are $20 per hour with a standard deviation of $6 per hour. Average years of education are 15 years with a standard deviation of 4 years. The correlation between the two variables is 0.8. Hourly earnings are regressed on years of education. What is the slope of the OLS regression line?...
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- Spring '08
- Normal Distribution, normal quantile plot