Consider the Actual and Forecast Values Contained in the Table

question 22

Multiple Choice

Consider the actual and forecast values contained in the table. What is the tracking signal for the 5th point in the series (actual = 22 & forecast = 21.7) ?

• A)-0.833
• B)-1.333
• C)0.833
• D)1.333

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Definitions:

Hysteresis

The phenomenon in which the state of a material lags behind changes in the effect causing it, such as the lagging of magnetic flux density behind the magnetizing force.

Spike Suppression

Techniques or devices used to protect electronic circuits from sudden transient voltages, which could cause damage or malfunction.

Metal Oxide Varistor

A voltage-dependent resistor with a nonlinear variance, used to protect electrical circuits from voltage spikes.

Inductance

The property of an electrical conductor by which a change in current flowing through it induces an electromotive force in both the conductor itself and in any nearby conductors by mutual inductance.