A Blower Motor That Is Rotating Very Slowly Is Being

question 57

Multiple Choice

A blower motor that is rotating very slowly is being tested. A voltmeter placed across the power and ground terminals of the motor indicates 6 volts when the blower switch is placed in the "high" speed position. All of the following statements about the possible cause of this problem are true, EXCEPT  

• A) the blower relay may be faulty
• B) there may be excessive ground circuit resistance
• C) there may be excessive resistance in the power feed circuit to the motor
• D) the blower motor may be faulty

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Definitions:

Sample Mean

is the average value of a subset of observations from a larger population.

Sample Variance

Sample variance is a measure of the dispersion or variability of a sample dataset, calculating how much the numbers differ from the sample mean.

Consistent

A statistical property indicating that as the size of the sample increases, the estimator converges in probability to the parameter being estimated.

Unbiased Estimators

Statistical estimators that, on average, accurately predict the value of a population parameter without systematic error.