Marketing Researchers and Their Clients Cannot Decide on Sample Size

question 47

Multiple Choice

Marketing researchers and their clients cannot decide on sample size without taking cost into consideration,however,the key is:

• A)To remember when to consider cost.
• B)To remember that budgets can be adjusted.
• C)To understand the effect on research outcomes.
• D)To understand sample sizes can be adjusted downward to accommodate cost.

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Definitions:

Portfolio of Risky Securities

A collection of investments that contain a degree of risk, with the expectation of achieving higher returns compared to risk-free assets.

Weighted Sum

A mathematical technique where each component is multiplied by a factor reflecting its importance before their sum is computed.

Variance of Returns

A measure of the dispersion of returns for a given security or market index, typically used to gauge the risk associated with a particular investment.

Covariance of Returns

A measure used in finance to assess how two investments move in relation to each other over a period.