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Question: You are given the following sample data for variables x and y:
a. Construct a scatter plot for these data and describe what, if any, relationship appears to exist.
b. Compute the regression equation based on these sample data and interpret the regression coefficients.
c. Based on the sample data, what percentage of the total variation in the dependent variable can be explained by the independent variable?
d. Test the significance of the overall regression model using a significance level of 0.01.
e. Test to determine whether the true regression slope coefficient is equal to 0. Use a significance level of 0.01.
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If statistically significant, do you think the difference is large enough to be important?
It is seen that the more the system owner spends on preemptive activities, the less the owner spends on after-the-fact activities. Develop and plot a statistical model to relate the two expenditure items. From the developed model, establish and pl..
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