The Average Weekly Earnings of Bus Drivers in a City $\mu$

question 98

Short Answer

The average weekly earnings of bus drivers in a city are $950 (that is $\mu$ ) with a standard deviation of $45 (that is $\sigma$ ). Assume that we select a random sample of 81 bus drivers.
a.Compute the standard error of the mean.
b.What is the probability that the sample mean will be greater than $960?
c.If the population of bus drivers consisted of 400 drivers, what would be the standard error of the mean?

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Definitions:

Self-Actualization

A psychological concept referring to the realization or fulfillment of one's talents and potentialities, considered as a drive or need present in everyone.

Intrinsic Rewards

Personal satisfaction or fulfillment that comes from within an individual, often as a result of completing a task or achieving a goal.

Extrinsic Benefits

Advantages or rewards that come from external sources, such as pay, praise, or awards, rather than from the enjoyment of the activity itself.

Hierarchy Of Needs

A theory in psychology proposed by Abraham Maslow, suggesting that people are motivated by five basic categories of needs: physiological, safety, love, esteem, and self-actualization, in that order.