Examine and comment on the scatterplots

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Reference no: EM131810947

Question: Find a multivariate data set relating to your work or business interests on the Internet, in your library, in a newspaper, or in a magazine, with a sample size of n¼25 or more, for which the F test is significant and at least one of the t tests is significant.

a. Give your choice of dependent variable (Y) and briefly explain your reasons.

b. Examine and comment on the scatterplots defined by plotting Y against each X variable.

c. Compute and briefly interpret the correlation matrix.

d. Report the regression equation.

e. For two elementary units in your data set, compute predicted values for Y and residuals.

f. Interpret each regression coefficient and its confidence interval.

g. Which regression coefficients are significant? Which (if any) are not? Are these results reasonable?

h. Comment on what you have learned from multiple regression analysis about the effects of the X variables on Y.

Reference no: EM131810947

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