Post Hoc Comparisons Are Used in One-Way ANOVA to Compare

question 16

Multiple Choice

Post hoc comparisons are used in one-way ANOVA to compare all the possible

• A)pairs of sample variances from different levels of a factor to determine which are significantly different from each other.
• B)pairs of sample means from different levels of a factor to determine which are significantly different from each other.
• C)variances to each other.
• D)pairs of sample means from different factors to determine whether they are significantly different from each other.

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Definitions:

Expected Returns

The anticipated profit or loss from an investment, based on projections or historical data.

Variances of Returns

A statistical measure of the dispersion of returns for a given security or market index, often used to quantify risk.

Mean-Variance Efficient Portfolio

A portfolio constructed to have the highest possible return for a given level of risk, or equivalently, the lowest risk for a given level of expected return, according to Harry Markowitz's theory.

Firm-Specific Variances

Variability in a firm's stock price or returns that is attributable to factors unique to that firm, as opposed to general market factors.