Determine If the Outcome Is Unusual $\mu - 2 \sigma \text { or greater than } \mu + 2 \sigma$

question 97

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 $\mu - 2 \sigma \text { or greater than } \mu + 2 \sigma$ .
-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 504 consumers who recognize the Dull Computer
Company name?

• A) Yes
• B) No

Understand how to calculate and simplify ratios.

Solve basic and complex proportion problems.

Interpret and analyze sales data and other business-related figures through percentages and ratios.

Apply understanding of ratios and proportions to various real-life business and economics contexts including partnership and investment scenarios.

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Definitions:

Phloem

The vascular tissue in plants responsible for the transport of sugars and nutrients throughout the plant.

Water Potential

The potential energy of water per unit volume relative to pure water, which determines the direction water will flow.

Tension-Cohesion Model

A theory explaining how water moves through plants, relying on water's cohesive properties and the tension created by transpiration.

Tension-Cohesion Model

A theory explaining the movement of water through the xylem of plants, based on water molecule cohesion and tension created by evaporation.