In the Past the Average Age of Employees of a Large

question 108

Essay

In the past the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of 25 employees was selected. The average age in the sample was 45 years with a standard deviation of 5 years. Assume the distribution of the population is normal. Let $\alpha$ = .05.
a.State the null and the alternative hypotheses.
b.Test to determine whether or not the mean age of all employees is significantly more than 40 years.

---

Definitions:

Feedback Reports

Documents or verbal communications that provide information on performance, suggesting areas for improvement and acknowledging strengths.

Internal Surveys

Tools or questionnaires used within organizations to gather feedback, opinions, or attitudes from employees or members on various topics.

Internal Proposals

Proposals or plans suggested within an organization, aiming to address internal issues or propose new projects.

Procedural Reports

Documentations detailing the methods and procedures followed to accomplish a task or process, often used in technical fields and businesses to ensure consistency and standardization.