Part of an Excel output relating Y (dependent variable) and 4 independent variables, X1 through X4, is shown below.
a.Fill in all the blanks marked with "?"
b.At 95% confidence, which independent variables are significant and which ones are not? Fully explain how you arrived at your answers.
Definitions:
Lipids
A group of naturally occurring molecules including fats, waxes, and vitamins, essential for energy storage and cell structure.
Digestive Tract
The series of organs in the digestive system through which food passes, nutrients are absorbed, and waste is eliminated; starting from the mouth and ending at the anus.
Fluid Balance
The maintenance of the correct volume and concentration of body fluids via mechanisms that regulate fluid intake and excretion.
Interstitial Fluid
The fluid that surrounds the cells in tissues, providing them with nutrients and a means to remove waste.
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