The Following Class Intervals for a Frequency Distribution Were Developed

question 53

Multiple Choice

The following class intervals for a frequency distribution were developed to provide information
Regarding the starting salaries for students graduating from a particular school:
Before data was collected, someone questioned the validity of this arrangement. Which of the
Following represents a problem with this set of intervals?

• A) there are too many intervals
• B) the class widths are too small
• C) some numbers between 18,000 and 30,000 would fall into two different intervals
• D) the first and the second interval overlap

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Definitions:

Interval Estimate

An estimate of a parameter that provides a range of possible values within which the parameter is expected to lie, specified by a confidence level.

Population Parameter

A numerical characteristic that describes an aspect of a population, such as its mean or variance.

Actual Value

The real value observed or measured, as opposed to an estimated or theoretical value.

Sample Mean

is the average value of a subset of observations from a larger population.