Suppose a Study Estimated the Population Mean for a Variable

question 143

Multiple Choice

Suppose a study estimated the population mean for a variable of interest using a 99% confidence interval. If the width of the estimated confidence interval (the difference between the upper limit and the lower limit) is 600 and the sample size used in estimating the mean is 1,000, what is the population standard deviation?

• A) 26711.14
• B) 2451.23
• C) 3684.21
• D) 5125.11

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Definitions:

Betas

A metric that assesses the systematic risk or volatility faced by a security or portfolio in contrast to the entire market.

Sharpe Measure

A ratio used to evaluate the risk-adjusted performance of an investment, considering both the return and the volatility of the investment.

Risk-Free Return

The theoretical return on investment with no risk of financial loss, typically associated with government bonds.

Standard Deviations

A statistical measure that quantifies the dispersion or spread of a set of data points relative to its mean, often used in the context of investment returns to measure volatility.