Suppose You Have a Random Sample of Employees in Your

question 49

Multiple Choice

Suppose you have a random sample of employees in your company and their tenure. The sample mean of this sample is 4.2 years and the sample standard deviation is 4.5 years. How would knowing that the random sample was of size 100 instead of 60 change the 90% confidence interval for the population mean of employee tenure?

• A) The 90% confidence interval will be larger for 100 than 60.
• B) The 90% confidence interval will be smaller for 100 than 60.
• C) The 90% confidence interval will be biased for 60.
• D) The 90% confidence interval will be biased for 100.

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Definitions:

Per-hour Wage

The amount of money paid to an employee for each hour of work.

Payroll Tax

Financial obligations placed on employers and workers, regularly computed based on a percentage of the compensation paid to workers.

Per-hour Wage

Compensation paid to an employee based on the number of hours worked.

Payroll Tax

Dues extracted from employers or laborers, usually as a percentage of the salary expenditures.