THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 25

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A career counselor is interested in examining the salaries earned by graduate business school students at the end of the first year after graduation.In particular,the counselor is interested in seeing whether there is a difference between men and women graduates' salaries.From a random sample of 20 men,the mean salary is found to be $42,780 with a standard deviation of $5,426.From a sample of 12 women,the mean salary is found to be $40,136 with a standard deviation of $4,383.Assume that the random sample observations are from normally distributed populations,and that the population variances are assumed to be equal.
-What is the lower confidence limit of the 95% confidence interval for the difference between the population mean salary for men and women?

• A)-$1,135.781
• B)-$791.792
• C)-$952.833
• D)$834.835

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Definitions:

Daily Habits

Routine behaviors or practices performed regularly, often unconsciously, that can significantly impact one's health and lifestyle.

Emotion-Focused

Emotion-focused approaches in psychology and therapy prioritize managing and understanding emotions as a key to resolving personal issues and improving well-being.

Problem-Focused

A coping strategy that involves directly confronting or attempting to solve a problem causing stress.

Coping

The process of managing stressful or difficult situations by making efforts to solve problems or by seeking to minimize their effects.