SCENARIO 12-17 Three New Different Models of Compact SUVs Have Just Arrived

question 15

Multiple Choice

SCENARIO 12-17
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 Scenario 12-17,what is your conclusion on the test using a 5% level of significance?

• A)There is not enough evidence of a difference in median gas mileage.
• B)There is evidence of a difference in median gas mileage.
• C)There is not enough evidence of a difference in mean gas mileage.
• D)There is evidence of a difference in mean gas mileage.

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Definitions:

Reliability

The consistency of a measure or test over time, ensuring that repeated experiments or trials yield similar results.

Spuriousness

A relationship between two variables that appears to be causal but is actually due to both variables being influenced by one or more other variables.

Interpretations

The act of explaining or making sense of something, such as a text, action, or event.

Reliability

The consistency of a measure or system to perform and produce the same results across different instances and time periods.