The Probability Distribution of the Error Variable $\varepsilon$ Is Normal,with Mean E

question 183

True/False

The probability distribution of the error variable $\varepsilon$ is normal,with mean E( $\varepsilon$ )= 0,and standard deviation $\sigma$ _{$\varepsilon$} =1.

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Definitions:

Time Study

A method used to determine the time required for an employee to complete a given job.

Sample Size

Denotes the number of subjects or units chosen from a population for the purpose of statistical analysis.

Accuracy

The degree to which the result of a measurement, calculation, or specification conforms to the correct value or a standard.

Standard Time

A predetermined or established duration for performing a task, used for planning, scheduling, and evaluating work efficiency.