Question

Given the information, find the equation for the least squares line as well as the correlation coefficient. (Round your values to two decimal places.) n = 10, ?x = 57, ?y = 1, ?xy = -13, ?x² = 353, ?y² = 45 y' = r = -0.526

          Given the information, find the equation for the least squares line as well as the correlation coefficient. (Round your values to two decimal places.)
n = 10, ?x = 57, ?y = 1, ?xy = -13, ?x² = 353, ?y² = 45
y' = 
r = -0.526

Added by Sandra T.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Sri K

07/25/2023

Step 1

In this case, we have: Dxy = -13 Dx2 = 353 - (57^2 / 10) = 68.3 So, b = -13 / 68.3 = -0.19 (rounded to two decimal places) Show more…

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Given the information, find the equation for the least squares line as well as the correlation coefficient. (Round your values to two decimal places.) n = 10, ∑x = 57, ∑y = 1, ∑xy = -13, ∑x² = 353, ∑y² = 45 r = -0.526