Use the Following Information for Following Questions

question 4

Multiple Choice

Use the following information for following questions .
The distribution of the number of hours of sleep people get per night is unimodal
and symmetric with a mean of 6 hours and a standard deviation of 1.5 hours.
-If James had a z-score of 1.2, how many hours did he sleep?

• A)7.5 hours
• B)7.8 hours
• C)8.0 hours
• D)8.2 hours

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Definitions:

Lower Limit

The smallest value that a given set, statistical sample, or data category can take on or be assigned.

Upper Limit

The maximum level or value that can be reached or is allowable in a given context.

Supply and Demand

Fundamental economic model describing how prices vary as a result of a balance between product availability and consumer demand.

Price Floor

A government or group-imposed price control that sets the lowest legal price a commodity can be sold at.