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McDonald's Employee Pay Regression Analysis

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X=weekly pay
Y=income tax withheld
n=35
a. Write the fitted regression equation
b State the degrees of freedom for a 2-tailed test for zero slope, and use the TINV function to find the critical value at alpha=.05
c. What is your conclusion about the slope?
d. Interpret the 95% confidence limits for the slope
e. Verify that F= t squared for the slope
f. Describe the fit of this regression

See attached excel spreadsheet for data.

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