The Distribution of Certain Test Scores Is a Nonstandard Normal $z$

question 16

Multiple Choice

The distribution of certain test scores is a nonstandard normal distribution with a mean of 50 and a standard deviation of 6 . What are the values of the mean and standard deviation after all test scores have been standardized by converting them to $z$ -scores using $z = ( x - \mu ) / \sigma$ ?

• A) The mean is 100 and the standard deviation is 10 .
• B) The mean is 0 and the standard deviation is 1 .
• C) The mean is 10 and the standard deviation is 100 .
• D) The mean is 1 and the standard deviation is 0 .

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Definitions:

Cash Register Overages

The situation where the amount of cash in a cash register exceeds the expected amount based on sales records.

Petty Cash Fund

A small amount of cash kept on hand within a business for minor, day-to-day expenses.

Cash Equivalents

Short-term, highly liquid investments that are readily convertible to known amounts of cash and are subject to an insignificant risk of changes in value.

Highly Liquid Investments

Investments that can be quickly converted into cash without a significant loss in value.