Suppose the Time It Takes for a Purchasing Agent to Complete

question 18

Multiple Choice

Suppose the time it takes for a purchasing agent to complete an online ordering
Process is normally distributed with a mean of 8 minutes and a standard deviation of 2
Minutes. Suppose a random sample of 25 ordering processes is selected. The standard
Deviation of the sampling distribution of mean times is

• A) 0.4 minutes
• B) 2 minutes
• C) 0.08 minutes
• D) 1.6 minutes
• E) 0.12 minutes

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Definitions:

Standard Deviation

A measure indicating the breadth of spread or variability in a series of values, showing how much the values differ from their mean.

Sample Mean

The average of a set of observations from a sample, representing an estimate of the population mean.

Poker Time

A designated or scheduled period during which poker games are played, often referring to regular or tournament play times.

Standard Deviation

A mathematical indicator assessing the extent of spread within a collection of data points.