It Is Believed That the SAT Scores for Students Entering

question 3

Multiple Choice

It is believed that the SAT scores for students entering two state universities may have different standard deviations.Specifically,it is believed that the standard deviation at University A is greater than the standard deviation at University B.If a statistical test is to be conducted,which of the following would be the proper way to formulate the null hypothesis?

• A)H₀ : - = 0
• B)H₀ : ≤
• C)H₀ : σ_A ≤ σ_B
• D)H₀ : >

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Definitions:

Gradient Slope

Gradient slope refers to the steepness or incline of a surface, often expressed as a ratio or percentage representing the change in height over a specific distance.

Water Table

The level below which the ground is completely saturated with water.

Vertical Exaggeration

A scale manipulation technique used in topographical maps or models to emphasize the vertical features by increasing their height relative to the horizontal aspects.

Permeability

The ability of a material, such as rock or soil, to allow fluids to pass through it, important in determining the movement of water and hydrocarbons in the Earth.