TABLE 12-20 Three New Different Models of Compact SUVs Have Just Arrived

question 103

Short Answer

TABLE 12-20
Three new different models of compact SUVs have just arrived at the market. You are interested in comparing the gas mileage performance of all three models to see if they are the same. A partial computer output for twelve compact SUVs of each model is given below:

You are told that the gas mileage population distributions for all three models are not normally distributed.
-Referring to Table 12-20, what are the degrees of freedom of the Kruskal-Wallis test statistic?

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Definitions:

Tuberculin Test

A diagnostic test for tuberculosis where a small amount of tuberculin is injected under the skin to check for a reaction indicating TB exposure.

Gauge

A measurement of the thickness, size, or capacity of something, commonly used in reference to the diameter of a needle or wire, or the thickness of sheet metal.

Parenteral Medication

A method of delivering medication by injection into a body part other than through the digestive tract, such as intravenously, intramuscularly, or subcutaneously.

Rotate Sites

In the context of medical treatments such as injections or monitoring, it refers to changing the location on the body where a procedure is performed to prevent tissue damage or improve efficacy.