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In a regression analysis involving 27 observations the following estimated regression equation was developed For this estimated regression equation

In a regression analysis involving 27 observations, the following estimated regression equation was developed.yˆ = 25.2 + 5.5x1

For this estimated regression equation SST = 1550 and SSE = 520.

a. At α = .05, test whether x1 is significant. Suppose that variables x2 and x3 are added to the model and the following regression equation is obtained.

yˆ = 16.3 + 2.3x1 + 12.1x2 + 5.8x3

Apr 19 2020 View more View Less

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