# Bus308 Statistics for Managers Wk 1 Quiz

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• Published : December 10, 2012

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1.Question :In general, an interval that contains a specified percentage of the individual measurements in a population is called a three sigma interval.

False

2.Question :A measurement located outside the outer fences of a box-and-whisker display is ____.

Student Answer: Always in the first quartile

An outlier

Always the largest value in the data set

Within the inner fence

3.Question :Stem-and-leaf displays and dot plots are useful for detecting

Outliers

Skewness

Midpoint of data

All of the above

4.Question :When a population is skewed to the left or right with a very long tail, what is the best measure to use for central tendency.

Population mode

Population median

Population standard deviation

5.Question :The science of using a sample to make generalizations about the important aspects of a population is known as

Descriptive Statistics.

A random sample.

Statistical Inference.

6.Question :The standardized value of any value in a population or sample is called

coefficient of variation

quartile

Z-score

7.Question :It is appropriate to use the Empirical Rule to describe a population that is extremely skewed.

False