Fuming because you are stuck in traffic? Roadway congestion is a costly item, both in 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 random sample of eight cities showed the following data. x (hr) 29 5 23 37 22 25 19 5 y (gal) 49332 53 35 39 299 USE SALT (a) Draw a scatter diagram for the data. 50 40 20 CLCC 20 5 15 20 25 35 10 20 30 40 x(hr) 10 20 10 5 10 15 20 25 30 20 30 40 x(hr) x(hr) Verify that Ex-165, x-4,259, y 249, ty 9,911, and Dry-6,474. Computer. (Round your answer to four decimal places.) -0.9841 The data in part (a) represent average annual hours lost per person and average annual gallons of fuel wasted per person in traffic delays. Suppose that instead of using average data for different cities, you selected one person at random from each city and measured the annual number of hours lost x for that person and the annual gallons of fuel wasted y for the same person. x (hr) 21 422 44 19 28 238 y (gal) 61 8 14 55 22 35 471 (b) Compute x and y for both sets of data pairs and compare the averages. Data 1 x Data 2 Compute the sample standard deviations s, and s, for both sets of data pairs and compare the standard deviations. (Round your answers to four decimal places.) Data 1 x x Data 2