Provide an Appropriate Response

question 159

Multiple Choice

Provide an appropriate response.
-Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if it is at least three standard deviations above or
Below the mean. Round to the z-score to two decimal places, if necessary.
A department store, on average, has daily sales of $29,016.01. The standard deviation of sales is $
1500. On Tuesday, the store sold $35,503.73 worth of goods.

• A)4.54, not unusual
• B)4.33, unusual
• C)4.64, unusual
• D)3.46, not unusual

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Definitions:

Conditional Probability

The probability that an event will happen after another specific event has already taken place.

Probability Tree

A diagram that helps in visualizing and calculating the probabilities of complex, multistep events.

Certification Test

A formal examination that, upon successful completion, certifies an individual's knowledge or skills in a particular area or profession.

Passed Test

An indication that a particular sample or set of data meets or exceeds the criteria established for a specific statistical test.