You Want to Compare a Sample Average to a Population

question 28

Multiple Choice

You want to compare a sample average to a population average.The sample population size is 130.The data table is shown below. $$\begin{array} { l c c } \hline & \text { Test Commercial } & \begin{array} { c } \text { Population of } \\\text { Commercials }\end{array} \\\hline \text { Average purchase intent } & 3.9 & 3.1 \\\text { Standard deviation } & ? & ? \\\text { Sample size } & ? & ? \\\hline\end{array}$$ How many of the question marks represent required pieces of data?

• A)1
• B)2
• C)3
• D)4

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Definitions:

Optimism

A mental attitude reflecting a belief or hope that the outcome of some specific endeavor, or outcomes in general, will be positive, favorable, and desirable.

Stress Mindset

A person’s belief or attitude towards stress, influencing how they perceive and react to stressful situations.

Behavioral Responses

The actions or reactions of an organism or system in response to stimuli or situations.

Stress-Induced

Refers to effects, responses, or conditions in the body or behavior that are directly caused by or heightened by stress.