Bus308 Statistics for Managers Wk 1 Quiz

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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.

Student Answer: True

False

Points Received:1 of 1
Comments:

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

Points Received:1 of 1
Comments:

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

Student Answer:
Outliers

Skewness

Midpoint of data

All of the above

Points Received:1 of 1
Comments:

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.

Student Answer: Population mean

Population mode

Population median

Population standard deviation

Points Received:1 of 1
Comments:

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

Student Answer: Statistical Process Control.

Descriptive Statistics.

A random sample.

Statistical Inference.

Points Received:1 of 1
Comments:

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

Student Answer: percentile

coefficient of variation

quartile

Z-score

Points Received:1 of 1
Comments:

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

Student Answer: True

False

Points Received:1 of 1
Comments:

8.Question :The population mean is the average of the...
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