. Explain which relationships are statistically significant, positive or negative? You need to tell me which Xs are more related to Y and which Xs are not. Also check the correlation among the X variables. Write a paragraph about possible negative or positive relation between each X with Y and the X variables among themselves based on the direction of the relationships and the statistical significance based on the p-value. (Hint: Also think about independent Xs assumption violation, do you see any possible signs of multicollinearity?
Regression questions:
Interpret regression equation variable by variable. Does the regression equation make sense to you?
Which variables are statistically significant? Which are not? You can use t-test or p-values.
Which variables are highly correlated?
Do you have a “sign switch”?
Do you have outliers? Are you planning to do anything about them?
Do you have a good overall model? Use both the r-squared and F-test explanations.
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