The Normal Approximation to the T Distribution Is Commonly Used

question 2

Multiple Choice

The normal approximation to the t distribution is commonly used:

• A)when the sample size is large, greater than 30
• B)only when the sample size is large, greater than 100
• C)it would never be used
• D)only when the central limit could apply
• E)none of the above

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Definitions:

Mph

Miles per hour, a unit of speed indicating the number of miles covered in one hour.

Dual Circuit Foot Valve

A type of valve used in air brake systems, allowing for control of two separate circuits with one pedal.

Air Disc Brake Rotors

Components of a disc brake system on vehicles, where compressed air is used to generate braking force on the rotors to slow down or stop the vehicle.

Spring Brake Chamber

A component in vehicle braking systems that uses a spring mechanism to apply force to the brakes, particularly for parking and emergency brakes.