# Question

In this section, we introduced a descriptive measure of the utility of the regression equation for making predictions. Do the following for that descriptive measure.

a. Identify the term and symbol.

b. Provide an interpretation.

a. Identify the term and symbol.

b. Provide an interpretation.

## Answer to relevant Questions

Fill in the blanks. a. A measure of total variation in the observed values of the response variable is the _________. The mathematical abbreviation for it is _________. b. A measure of the amount of variation in the observed ...y-bar = −3 + 2x a. Compute the three sums of squares, SST, SSR, and SSE, using the defining formulas (page 164). b. Verify the regression identity, SST = SSR + SSE. c. Compute the coefficient of determination. d. Determine ...Following are the data on plant weight and quantity of volatile emissions from Exercise 4.53. a. Compute SST, SSR, and SSE, using Formula 4.2 on page 167. b. Compute the coefficient of determination, r2. c. Determine the ...For each of the sums of squares in regression, state its name and what it measures. a. SST b. SSR c. SSE In the context of regression analysis, what is an a. Outlier? b. Influential observation?Post your question

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