In a multiple regression, the following sample regression equation is obtained: y-hat = 155 + 11.2x1 +
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Question:
In a multiple regression, the following sample regression equation is obtained: y-hat = 155 + 11.2x1 + 2.3x2.
a. Predict y if x1 equals 21 and x2 equals 33. (Round your answer to 1 decimal place.)
y-hat =
b. Interpret the slope coefficient of x1.
As x1 increases by one unit, y is predicted to decrease by 11.2 units, holding x2 constant.
As x1 increases by one unit, y is predicted to increase by 2.3 units, holding x2 constant.
As x1 increases by one unit, y is predicted to increase by 11.2 units, holding x2 constant.
As x1 increases by one unit, y is predicted to decrease by 2.3 units, holding x2 constant.
Related Book For
Essentials of Business Statistics Communicating With Numbers
ISBN: 978-0078020544
1st edition
Authors: Sanjiv Jaggia, Alison Kelly
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