In Order to Estimate the Difference Between the Average Hourly

question 19

Multiple Choice

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. $\begin{array}{lll}& \text { Downtown Store } & \text { North Mall Store } \\ \text { Sample size } & 25 & 20 \\\text { Sample mean }& \$ 9 & \$ 8 \\\text { Sample standard deviation } & \$ 2 & \$ 1\end{array}$ A point estimate for the difference between the two population means is

• A) 1.
• B) 2.
• C) 3.
• D) 4.

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Definitions:

Safety Culture

The shared values, beliefs, and practices within an organization that influence its commitment to health and safety management.

Anticipated Census

An estimate of the number of individuals within a defined population at a future point in time, often used in planning and resource allocation.

Workload Fluctuations

Variations in the amount of work assigned or required over a particular period, often influenced by external factors or operational demands.

Human Factor

The study of how humans interact with systems, tools, and environments, especially in the context of work and workplaces, to improve performance and reduce errors.