Two Hundred And Eighty Boys Completed A Test That Measures The Distance That The Subject Can Walk On A Flat Hard Surfac 1 (32.06 KiB) Viewed 7 times
Two Hundred And Eighty Boys Completed A Test That Measures The Distance That The Subject Can Walk On A Flat Hard Surfac 2 (25.86 KiB) Viewed 7 times
Two hundred and eighty boys completed a test that measures the distance that the subject can walk on a flat, hard surface in 6 minutes. For ea median distance walked by the boys in that age group is also given. Age Group 3-5 6-8 9-11 12-15 16-18 A Representative Age (Midpoint of Age Group) 4 7 10 13.5 17 Median Six-Minute Walk Distance (meters) 544.3 499.4 585.3 662.8 664.6 667.9 584.0 667.3 701.1 727.6 This experiment also reported the 6-minute walk distances (in meters) for 248 girls ages 3 to 18 years. The median 6-minute walk distances respectively, are given below.
O The pattern in the scatterplot for girls does not differ from the pattern in the scatterplot for boys. (c) Find the equation of the least-squares line that describes the relationship between median distance walked in 6 minutes and representative age for girls. (Round your values to four decimal places.) 9-12.5426 x + 486.9969 * )* (d) Calculate the five residuals. (Round your answers to three decimal places.) Representative Age (x) Residual (meters) 7 10 13.5 17 521.85 Construct a residual plot. Residual X Residual
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