A(n) ______ Hypothesis Predicts a Directional Effect, Whereas A(n) ______

question 2

Multiple Choice

A(n) ______ hypothesis predicts a directional effect, whereas a(n) ______ hypothesis predicts an effect in either direction.

• A) one-tailed; two-tailed
• B) two-tailed; one-tailed
• C) null; alternative
• D) alternative; null

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Definitions:

Camshaft

A crankshaft-driven shaft containing oblong-shaped lobes that push on valve lifters to open cylinder head valves.

Cylinder Head

The component of an engine that closes in the top of the cylinder, forming the combustion chamber and containing mechanisms such as valves and spark plugs.

Four-Stroke Cycle

A cycle of internal combustion engine operation that includes intake, compression, power, and exhaust strokes.

Crankshaft

A pivotal component in an engine that translates the linear motion of pistons into rotational motion to drive the vehicle.