Suppose you have done a simple linear regression analysis using a sample of 50 data points in an attempt to find a linear connection between worker overtime hours (x) and worker productivity (y) for employees of Sky Marketing Enterprises.The correlation coefficient turned out to be -.80. If total variation in y was 22500, then explained variation (SSR) must be _____.
A)13600
B)4300
C)4840
D)11900
E)14400

Question

Quizplus · Accepted Answer

The explained variation (SSR) can be calculated using the formula SSR = r^2 * SST, where r is the correlation coefficient and SST is the total variation. Here, r = -0.80 and SST = 22500. So, SSR = (-0.80)^2 * 22500 = 0.64 * 22500 = 14400.

Suppose You Have Done a Simple Linear Regression Analysis Using