A Researcher Reports That the Effectiveness of a New Marketing

question 31

Multiple Choice

A researcher reports that the effectiveness of a new marketing campaign significantly increased sales compared with the previous campaign strategy,t(49) = 2.562,p < .05.Use eta-squared to interpret the effect size for this result.

• A)12% of the variability in marketing effectiveness can be accounted for by the new marketing strategy.
• B)12% of the standard error can be accounted for by the effectiveness of the marketing strategy.
• C)Marketing effectiveness shifted 0.12 standard deviations above the mean in the population.
• D)both A and B are correct

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Definitions:

Factoring

The process of breaking down an expression into a product of simpler expressions, often used to simplify expressions or solve equations.

Integers

Whole values including positive, negative, and zero without any fractions or decimals fall under the category of integers.

Factor

In mathematics, a factor is a number or expression that divides another number or expression evenly, without leaving a remainder.

Expression

A mathematical phrase that can contain numbers, variables, and operation symbols but does not have an equal sign.