Question

Question 2 of 8 (4 points) View problem in a pop-up 102 Section Exercise 24a,b,c The number of assists and total number of points for a sample of NHL scoring leaders from the NHL are shown. Question Check Answer Assists x Total points y 67 83 58 59 68 44 65 69 82 98 73 74 83 59 80 84 Guided Solutio Link to Textboo Tables Source: Associated Press. Download data Formulas Part 1 The correlation coefficient for the data is r = 1 and a = 0.01. Should regression analysis be done? The regression analysis should be done. Save for Later Submit Assignment Part 2 out of 3 Find the equation of the regression line. Round the coefficients to three decimal places. y' = a + bx CHECK HAAL

Answer 1

Part 2

x: 67 83 58 59 68 44 65 69

y: 82 98 73 74 83 59 80 84

X Y XY XX YY 67 82 5494 4489 6724 83 98 8134 6889 9604 58 73 4234 3364 5329 59 74 4366 3481 5476 68 83 5644 4624 6889 44 59 2596 1936 3481 65 80 5200 4225 6400 69 84 5796 4761 7056

ΣΧ = 513.0. ΣΥ = 633.0 ΣΧΥ = 41464.0, ΣXX = 33769.0, ΣΥΥ = 50959.0

15.0 y = α+ br " ΣΥ * ΣXX – ΣΧ* ΣΧΥ ηΣ Χ2 - (ΣΧ)2 633.0 * 33769.0 – 513.0 * 41464.0 α = - " 8 και 33769.0 – 513.0 * 513.0 , ηΣΧΥ - ΣΧ* ΣΥ ηΣ Χ2 - (ΣΧ)2 8 και 41464.0 – 513.0 * 633.0 8 και 33769.0 – 513.0 * 513.0 Η = 15.0 +1.0r 2 3.0 * 51301.0

a = 15

b = 1   

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