What Would Happen to the Performance of the HVAC Unit

question 13

Multiple Choice

What would happen to the performance of the HVAC unit if the manual coolant shut off valve on the engine were closed?

• A) The unit could cool but not control temperature in the main cab.
• B) The unit could cool but not control temperature in the sleeper compartment.
• C) The unit would not heat or control temperature of either the cab or sleeper compartment.
• D) All of the above statements are possible scenarios.

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Definitions:

Two-Tail Test

A statistical test where the critical area of a distribution is two-sided and tests whether a sample is either greater than or less than a range of values.

Null Hypothesis

A theory proposing that there's no meaningful statistical distinction between the two variables under consideration in the hypothesis.

Rejection Region

The area in a statistical test's distribution which, if the test statistic falls within, leads to the rejection of the null hypothesis.

Standard Deviation

An index showing the degree of spread or deviation from the mean within a data collection.