A Study Was Recently Conducted at a Major University to Estimate

question 31

Multiple Choice

A study was recently conducted at a major university to estimate the difference in the proportion of business school graduates who go on to graduate school within five years after graduation and the proportion of non-business school graduates who attend graduate school. A random sample of 400 business school graduates showed that 75 had gone to graduate school while in a random sample of 500 non-business graduates, 137 had gone on to graduate school. Based on a 95 percent confidence level, what is the upper limit of the confidence interval estimate?

• A) 0.2340
• B) 0.1034
• C) -0.031
• D) -0.018

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Definitions:

Pancreas

An organ in the abdominal cavity involved in digestion and blood sugar regulation, producing digestive enzymes and insulin.

Female Pelvis

The lower part of the trunk of the human body between the abdomen and the thighs; in females, it includes the structures involved in reproduction.

Ovaries

Female reproductive organs in which eggs are produced and hormones like estrogen and progesterone are secreted.

Mammary Glands

Glands located in the breasts of female mammals that produce milk to feed young offspring.