A Random Sample of Size 1,000 Is Taken from a Population

question 6

Multiple Choice

A random sample of size 1,000 is taken from a population where p = .20. Find P( < .18) .

• A) .9429
• B) .0569
• C) .2643
• D) .0793

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values in a data set vary from the mean.

Z-Scores

A statistical measurement that describes a value's relationship to the mean of a group of values, expressed in terms of standard deviations from the mean.

Distributional Errors

Definition: Mistakes that occur when evaluating employee performance, typically involving the incorrect application of a uniform distribution across performance categories.

Contrast Errors

Mistakes made in evaluating performance where an employee's assessment is unfairly influenced by the comparison with another’s performance.