Question

If we were to use the regression approach to an analysis of variance to help the ecologist predict the temperatures based on altitude, what would we use as the values for the independent variable (X) :

a) the grand mean
b) the group means
c) the grand total
d) the group totals
e) the estimated variance
f) the estimated standard deviations
g) the expected mean squares

Answer 1

In regression analysis, the independent variable is used to predict or explain changes in the dependent variable. In this case, the independent variable would be altitude.

Step-by-step explanation:

The independent variable (X) in regression analysis is the variable that is used to predict or explain changes in the dependent variable. In this case, the independent variable would be altitude, as the ecologist is trying to predict temperatures based on altitude.

So, the answer is b) the group means.