SCENARIO 12-15 Two New Different Models of Compact SUVs Have Just Arrived

question 134

Multiple Choice

SCENARIO 12-15
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 Scenario 12-15,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:

Causal Relationship

A connection between two variables where a change in one directly causes a change in the other.

Pickup Truck

A light motor vehicle with an open-top rear cargo area (bed), typically used for transporting goods.

Negatively Correlated

Refers to two variables which move in opposite directions; when one variable increases, the other decreases, and vice versa.

Variables

Elements, features, or factors that are likely to vary or change and can be measured, controlled, or manipulated in experiments or models.