THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 82

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 9 hours.A random sample of 5 students was taken in order to estimate the mean study time for the population of all students.
-What is the probability that the sample mean is more than 3.2 hours below the population mean?

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Definitions:

Plant Closing

The process of permanently shutting down a factory or business, often accompanied by layoffs of employees.

Mass Layoff

A significant reduction in a company's workforce initiated by the employer, affecting a large number of employees, often due to economic downturns or structural changes within the company.

Public Policy Tort

A legal wrong that violates established public policy, allowing victims to seek damages in court.

Employment-At-Will

A doctrine followed by most jurisdictions in the United States that says an employer can dismiss an employee at any time for any reason.