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

question 77

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 $\mu + 2 \sigma$
-According to AccuData Media Research, 36% of televisions within the Chicago city limits are tuned to "Eyewitness News" at 5:00 pm on Sunday nights. At 5:00 pm on a given Sunday, 2500 such televisions are
Randomly selected and checked to determine what is being watched. Would it be unusual to find that 919 of the
2500 televisions are tuned to "Eyewitness News"?

• A) Yes
• B) No

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Definitions:

Past

The time before the present, including all events, periods, and experiences that have occurred.

Quiet

The absence of loud sound; a state or condition of little or no noise.

Raised

To lift or move something to a higher position or level; also refers to bringing up or nurturing something.

Know

To be aware of through observation, inquiry, or information; to have knowledge or understanding of something.