A Heat Transfer Process Designed to Cool a Large Electric

question 61

Multiple Choice

A heat transfer process designed to cool a large electric motor must maintain the temperature as steadily as possible.The allowable variance for the process is 0.3969.Ten measurements of effluent temperature from the process have a variance of 0.4563.Assuming the underlying distribution is normal, does the sample indicate that the variance for the process is larger than allowed? State the critical value (CV) , test statistic (TS) , and decision from the test.(Use α = 0.05.)

• A) CV = 16.9190; TS = 10.347; reject H₀
• B) CV = 16.9190; TS = 10.347; fail to reject H₀
• C) CV = 19.0228; TS = 7.828; fail to reject H₀
• D) CV = 19.0228; TS = 7.828; reject H₀

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Definitions:

REM

Rapid Eye Movement, a phase of sleep characterized by fast and random movement of the eyes, during which vivid dreams commonly occur.

Sleep

A natural, reversible state of rest for the body and mind, essential for health and well-being.

WAIS-III

The third edition of the Wechsler Adult Intelligence Scale, a psychological test designed to measure cognitive ability in adults.

Intelligence

The ability to learn, understand, and apply information, solve problems, and adapt to new situations.