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In the least squares  = , a) what is the value of the slope? b) When  increases 1...

In the least squares  = ,

a) what is the value of the slope?

b) When  increases 1 unit, by how much does  change?

Math   Statistics-And-Probability   
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Answer #1

Let x be independent variable and y be dependent variable.

Least square Regression equation is

= a + b *x

where a is intercept and b is slope and is predicted value of y for some x.

The slope is rate of change when x increases by 1 unit then the changes by b units.If slope is positive then the increases and if slope is negative then decreases.

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