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10 10 10 10 je 10 10 Question 12: Consider a sample of data (represents pairs of observations (0,4),(3,9),..-(410-410)).
Posted: Thu Jan 13, 2022 5:45 am
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- 10 10 10 10 Je 10 10 Question 12 Consider A Sample Of Data Represents Pairs Of Observations 0 4 3 9 410 410 1 (61.64 KiB) Viewed 75 times
10 10 10 10 je 10 10
Question 12: Consider a sample of data (represents pairs of observations (0,4),(3,9),..-(410-410)). If you know that ] = 101, y = 16.1, { x = 102630, {v} = 2641, 4.7: = 16434, (2: - 7)* = 620, (): - )* = 48.9, -, -7)(0:- 7) =-42.0 , SSE = 0.6275 and SSR = 48.262. Then: a) Calculate the coefficient of correlation (r). b) Is the relationship between X and Y linear? Positive or negative? Strong or weak? c) Determine the equation of linear regression for the given sample, and draw it on the scatter plot. Y 20 19 18 * * * cả ở % % % PM 16 15 14 13 12 10 R6 RA 90 92 94 96 SR 100 102 104 106 108 110 112 114 116 118 X d) What is the value of total sum of squared variations? e) If the sum of squared regression error (SSR) equals to 48.262, then calculate the value of coefficient of determination (you must be using SSR or SSE).