Consider the following results for two samples randomly taken from two populations. 
a.Determine the degrees of freedom for the t distribution.
b.At 95% confidence, what is the margin of error?
c.Develop a 95% confidence interval for the difference between the two population means.
Definitions:
Labour Requirements
The necessary number of workers and skill levels needed to complete a specific task or project within a given time frame.
Production
The creation of goods and services.
Learning Curve
A graphical representation of the rate at which learning occurs, showing how efficiency or proficiency improves with experience or over time.
Personnel
The employees or staff members of a business or organization responsible for its operations.
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