SCENARIO 12-17
Three New Different Models of Compact SUVs Have $\neq$

question 158

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 should be the null and alternative hypotheses of the test?

• A)H₀ : M₁ = M₂ = M₃ vs.H₁ : M₁ \(\neq\) M₂ \(\neq\) M₃
• B)H₀ : M₁ = M₂ = M₃ vs.H₁ : M₁ \(\neq\) M₂ \(\neq\) M₃ .
• C)H₀ : M₁ = M₂ = M₃ vs.H₁ : M₁ = M₂ \(\neq\)M₃
• D)H₀ : M₁ = M₂ =M₃ vs.H₁ ^: Not all M _j Are equal (where j = 1,2,3)

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Definitions:

Variable Overhead Rate

This rate reflects the cost of variable overhead allocated to each unit of production, based on an activity such as direct labor hours.

Direct Labor-Hours

The total hours worked by employees directly involved in the manufacturing process or providing a service.

Fixed Manufacturing Overhead

Costs that do not change with the level of manufacturing output, including salaries of managers and depreciation of factory equipment.

Direct Labor-Hours

The total hours of labor directly involved in producing goods or providing services.