A 99% Confidence Interval (In Inches) for the Mean

question 51

Multiple Choice

A 99% confidence interval (in inches) for the mean height of a population is $65.7 < \mu < 67.3$
This result is based on a sample of size 144 . Construct the 95% confidence interval. (Hint: you will first need to find the sample mean and sample standard deviation) .

• A) \(65.7 \text { in. } < \mu < 67.3 \text { in. }\)
• B) \(65.9 \text { in. } < \mu < 67.1 \text { in. }\)
• C) \(65.6 \text { in. } < \mu < 67.4 \text { in. }\)
• D) \(66.0 \text { in. } < \mu < 67.0 \text { in. }\)

---

Definitions:

Expected Market Return

The average return anticipated from an investment in a broad market index over a certain period.

Expected Return

The anticipated return on an investment based on the probabilities of possible outcomes.

Risk-Free Rate

The expected earnings from an investment that carries no risk of losing money, typically exemplified by the return on government bonds.

Expected Return

The anticipated value or return that an investor predicts to receive from an investment over a period of time.