A System Is to Be Composed of 5 Identical Components

question 33

Multiple Choice

A system is to be composed of 5 identical components in series. What is the lowest reliability component that can be used in order to have an overall system reliability of 0.90?

• A) 0.98
• B) 0.97
• C) 0.96
• D) 0.95
• E) 0.94

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Definitions:

T-Values

Statistics used in T-tests that compare the means of two groups. They indicate how many standard deviations an observed sample mean is from the null hypothesis mean.

Z-Values

Standardized scores that indicate how many standard deviations an element is from the mean.

Sample Size

The number of observations or data points used in a statistical sample.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, often determining the shape of the distribution.