Assume that you have calculated a prediction of 
= 110 where the specific value for x is equal to the average value of x.Also assume that n = 201 and that the standard error of the estimate is sε = 4.5.Find the approximate 95 percent prediction interval.
Definitions:
Interaction Effect
Occurs when the effect of one independent variable on the dependent variable differs depending on the levels or values of another independent variable.
F-Ratio
The ratio used in analysis of variance (ANOVA) to compare the variance between groups to the variance within groups.
Main Effect
The main effect is the impact of an independent variable on a dependent variable in a statistical model, ignoring other variables' influences.
Factor A
Factor A is often used in experimental design to represent one of the independent variables being tested for its effect on a dependent variable.
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