BUS 308 Ashford Week 1 Quiz

In this paperwork of BUS 308 Week 1 Quiz you will find the answers on the next questions:

1. The two types of quantitative variables are
ordinal and ratio.
interval and ordinal.
nominative and ordinal.
interval and ratio.
nominative and interval.
2. As a general rule, when creating a stem-and-leaf display, there should be between ______ stem values.
3 and 100
1 and 100
no fewer than 20
5 and 20
3. The median is the value below which and above which approximately 50 percent of the measurements lie.
True
False
4. Temperature in degrees Fahrenheit is an example of a ____ variable.
nominative
ordinal
interval
ratio
5. Stem-and-leaf displays and dot plots are useful for detecting
Outliers
Skewness
Midpoint of data
All of the above
6. Any characteristic of a population unit is called a
measurement.
sample.
observation.
variable.
7. The science of using a sample to make generalizations about the important aspects of a population is known as
Statistical Process Control.
Descriptive Statistics.
A random sample.
Statistical Inference.
8. A normal population has 99.73 percent of the population measurements within ___ standard deviations of the mean.
one
two
three
four
9. When we are choosing a random sample and we do not place chosen units back into the population, we are
sampling with replacement.
sampling without replacement.
using a Systematic Sample.
using a Voluntary Response Sample.
10. An example of manipulation of graphical display used to distort reality is:
Zero at the axes
Equal widths of bars in a histogram
Stretched axes
A & C

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Answer:

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