STA200 Homework 4 Based on Chapter 4. 1) Exercise 23, page 159. Roadway congestion is a costly item, in both time wasted, and fuel wasted. Let X represent the average annual hours per person spent in traffic delays and let Y represent the average annual gallons of fuel wasted per person in traffic delays. a) Draw a scatter diagram for the data. b) Compute r (Coefficient of Correlation). c) Is there a correlation? 2) Exercise 7, page 172. Let X represent the total number of jobs in each neighborhood, and let Y represent the number of entry- level jobs in the same neighborhood. A sample of six neighborhoods gave the following information (units in hundreds of jobs). a) Calculate the media of jobs. b) Calculate the media of entry-level jobs. ) Compute r (Coefficient of Correlation). d) Draw a scatter diagram for the data, showing the regression line. e) Calculate the Coefficient of Determination. f) Calculate the Regression Equation. g) Question: If a neighborhood with 40 jobs, how many are predicted to be entry-level jobs