A Statistically Significant Difference Means

question 35

Multiple Choice

A statistically significant difference means:

• A)there is practical significance
• B)the differences would remain in a large number of trials if we repeated the survey over many times
• C)the p values are very large
• D)the z values are very small
• E)the x values are average

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Definitions:

Non-Positive

Describes a connection or interaction where movement or slip is permitted between components, as opposed to a fixed, rigid connection.

Vane Pump

A fluid pump consisting of a slotted rotor that turns within a pump liner or cam ring. The rotor is milled with radial slots in which vanes (blades/plates) float, being thrust out by centrifugal force into the liner to form pump chambers when the rotor turns.

Positive Displacement

A characteristic of a pump or motor that has its inlet positively sealed from its outlet so that no fluid can recirculate within the component; that is, what goes into the pump per cycle is what comes out per cycle.

Accumulators

Devices in hydraulic systems that store fluid under pressure, used to absorb shock or maintain pressure.