Solve the Problem. -Among a Random Sample of 400 College Students, the Mean

question 70

Multiple Choice

Solve the problem.
-Among a random sample of 400 college students, the mean number of hours worked per week at non-college related jobs is 14.4. This mean lies 2.8 standard deviation(s) above the mean of the sampling distribution. If a second sample of 400 students is selected, what is the probability that for the second sample, the mean number of hours worked will be less than 14.4?

• A)0.9974
• B)0.0026
• C)0.9965
• D)0.5

---

Definitions:

Uterine Tube

Also known as the fallopian tube, it is a part of the female reproductive system that transports the ova from the ovary to the uterus.

Fetal Development

The process of growth and development within the womb, from the formation of an embryo to the birth of a baby.

Human Chorionic Gonadotropin

A hormone produced by the placenta shortly after implantation, used in medical contexts as an indicator of pregnancy.

Implantation

The process by which a fertilized egg attaches itself to the lining of the uterus and begins to grow.