Saved Homework Assignment Chapter 14 0 Exercise 14-43 Algo 6.25 points In a simple linear regression based on 44 observations, it is found that SSE - 2,578 and SST = 20,343. a. Calculate and se (Round your answers to 2 decimal places.) ebook Print b. Calculate the coefficient of determination R2 (Round your answer to 4 decimal places.) Coefficient of Determination References 00 a Exercise 14-55 Algo 625 points For a sample of 31 New England cities, a sociologist studies the crime rate in each city crimes per 100,000 residents) as a function of its poverty rate (in %) and its median income (in $1,000s). He finds that SSE - 4,155,943 and SST - 7,675,381. a. Calculate the standard error of the estimate. (Round your answer to 4 decimal places.) Standard Error ILL References b-1. What proportion of the sample variation in crime rate is explained by the variability in the explanatory variables? (Round your answer to 4 decimal places.) Explained proportion b-2. What proportion is unexplained? (Round your answer to 4 decimal places.) Unexplained proportion