An Analyst Plans to Test Whether the Standard Deviation for the Time

question 22

Multiple Choice

An analyst plans to test whether the standard deviation for the time it takes bank tellers to provide service to customers exceeds the standard of 1.5 minutes. The correct null and alternative hypotheses for this test are:

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Definitions:

Power On

The action or process of activating a device or system, providing it with electrical power to begin operation.

PLC Operating

Pertains to the functioning and management of a Programmable Logic Controller, a digital computer used for automation of electromechanical processes.

AC Output Interface Module

A device that allows an industrial control system, such as a PLC, to control or operate AC electrical equipment.

Maximum Current Rating

The highest current an electrical component, device, or circuit can safely carry under specified conditions without exceeding its design limits.