Homework 22

Homework 22 - Graded Homework 22 You have submitted this...

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Graded Homework 22 You have submitted this Homework 1 time (including this time). You may submit this Homework a total of 40 times and receive full credit. This homework covers polynomial models, material that can be found in your course packet on pages 110-114. Question #1 Based on this data on the experience (in years) and salary (in thousands of dollars) of 51 employees of a firm, answer the following questions using your results of the sample linear regression of salary (dependent variable) on experience (independent variable) and the corresponding residual plot. 1. The scatterplot of salary on experience suggests that there is A positive curve-linear relationship between salary and experience. 2. Which one of the following seems to be an accurate representation of the residual plot. An U-shaped band. 3. The residual plots of regressing experience (dependent variable) on salary (independent variable) will be the opposite of the residual plot from a regression of salary on experience and exhibit an inverted-U shape band. 4. The value of R² you obtain from this regression is 0.784507379 5. Now add an additional independent variable, called "experience2". Create this
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Homework 22 - Graded Homework 22 You have submitted this...

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