TABLE 12-18 Two New Different Models of Compact SUVs Have Just Arrived

question 90

Short Answer

TABLE 12-18
Two new different models of compact SUVs have just arrived at the market. You are interested in comparing the gas mileage performance of both models to see if they are the same. A partial computer output for twelve compact SUVs of model 1 and thirteen of model 2 is given below:

You are told that the gas mileage population distributions for both models are not normally distributed.
-Referring to Table 12-18, what is your decision on the test using a 5% level of significance?

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Definitions:

Multiple Determination

A statistical measure represented as R^2, indicating the proportion of variance in the dependent variable that can be predicted from the independent variables.

Regression Hyperplane

In multivariate statistics, it's a flat subspace that best fits the data points in a regression analysis.

Total Variation

The overall measure of variability or spread in a dataset.

Predictor Variables

Variables that are used in statistical models to predict or explain changes in the dependent variable.