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Question: Consider experience as the Y variable and age as the X variable.

a. Draw a scatterplot and describe the relationship.

b. Find the correlation coefficient. What does it tell you? Is it appropriate, compared to the scatterplot? c. Find the least-squares regression line to predict Y from X and draw it on a scatterplot of the data.

d. Find the standard error of estimate. What does it tell you?

e. Find the standard error of the slope coefficient.

f. Find the 95% confidence interval for the slope coefficient.

g. Test at the 5% level to see if the slope is significantly different from 0. Interpret the result. h. Test at the 1% level to see if the slope is significantly different from 0.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92637370

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