A Sample of 81 Statistics Students at a Small College $95 \%$

question 7

Multiple Choice

A sample of 81 statistics students at a small college had a mean mathematics ACT score of 24 with a standard deviation of 8 . Find the $95 \%$ confidence interval. Round your answer to two decimal places.

• A) \(23.11 < \mu < 24.89\)
• B) \(77.73 < \mu < 84.27\)
• C) \(23.80 < \mu < 24.20\)
• D) \(22.22 < \mu < 25.78\)

Identify the characteristics, habitat preferences, and roles of cyanobacteria in environments and symbiotic relationships.

Explain the disease-causing mechanisms of different types of viruses and prions.

Understand the basic structure and functions of viruses.

Identify and describe the role of prions in neurodegenerative diseases.

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Definitions:

Portfolio's Beta

A measure of the volatility, or systemic risk, of a portfolio in comparison to the market as a whole.

Standard Deviation

A measure of the dispersion or variation in a distribution or set of data, widely used in statistics to gauge the volatility of financial returns.

Equally-weighted Portfolio

An investment portfolio in which all assets are allocated the same proportion of total investment.

Total Risk

The complete range of risk associated with an investment, including both systematic and unsystematic risk.