In a simple linear regression, the following information is given: Calculate b 1
ID: 3170854 • Letter: I
Question
In a simple linear regression, the following information is given:
Calculate b1. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)
Calculate b0. (Round intermediate calculations to 4 decimal places and final answer to 2 decimal places.)
What is the sample regression equation? (Negative value should be indicated by a minus sign. Round your answers to 2 decimal places.)
Predict y if x equals 29. (Round intermediate coefficient values and final answer to 2 decimal places.)
In a simple linear regression, the following information is given:
Explanation / Answer
(A)
b1 = [ (xi - x)(yi - y) ] / [ (xi - x)2]
b1 = -854/700 = -1.22
(B)
b0 = y - b1 * x
b0 = 53 - (-1.22)*(-32) = 13.96
(C-1)
= b0 + b1x
= 13.96 - 1.22x
(C-2)
for x=-29
= 13.96 - 1.22 * (-29)
= 49.34