Independent random samples taken at two companies provided the following information regarding annual salaries of the employees. 
a.We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic.
b.Compute the p-value; and at 95% confidence, test the hypotheses.
Definitions:
Performance Appraisal
refers to the process of evaluating employee performance against predefined benchmarks or objectives, often influencing promotions, pay raises, and development.
Work Accomplishments
Achievements or contributions made by an individual or a team in their job or professional career.
Providing Feedback
The process of giving constructive information or evaluations to individuals or groups regarding their behavior or performance, aimed at improving future outcomes.
Informal Review
A non-structured, casual process of assessing performance or progress, often conducted ad hoc or in an unstructured setting.
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