Determine If the Outcome Is Unusual $\mu - 2 \sigma$ Or Greater Than

question 67

Multiple Choice

Determine if the outcome is unusual. Consider as unusual any result that differs from the mean by more than 2 standard
deviations. That is, unusual values are either less than $\mu - 2 \sigma$ or greater than $\mu + 2 \sigma$
-A survey for brand recognition is done and it is determined that 68% of consumers have heard of Dull Computer Company. A survey of 800 randomly selected consumers is to be conducted. For such groups of 800,
Would it be unusual to get 530 consumers who recognize the Dull Computer Company name?

• A) Yes
• B) No

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Definitions:

Purchase Quantity

The total number of units of a product that a customer buys at one time.

Average Profit

The total profit divided by the number of entities, indicating the average amount of profit per entity.

Spider Chart

A spider chart, also known as a radar chart, is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point.

Rate of Change

Rate of Change is a measure used in mathematics and economics to represent the speed at which a variable changes over a specific period of time.