Site MapHelpFeedbackMultiple Choice and True/False Quiz
Multiple Choice and True/False Quiz
(See related pages)

1.
Stem-and-leaf displays and dot plots are useful for detecting ______________.
A)Outliers
B)Skewness
C)Midpoint of data
D)All of the above
2.
A normal population has 99.73 percent of the population measurements within ________ standard deviations of the mean.
A)one
B)two
C)three
D)four
3.
All of the following are measures of central tendency except the
A)range.
B)mode.
C)mean.
D)median.
4.
Which percentile describes the first quartile Q1?
A)25th
B)50th
C)75th
D)100th
5.
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.
A)Population mean
B)Population mode
C)Population median
D)Population standard deviation
6.
A _______________ can be used to differentiate the "vital few" causes of quality problems from the "trivial many" causes of quality problems.
A)histogram
B)scatter plot
C)pareto chart
D)box plot
E)stem and leaf display
7.
The standardized value of any value in a population or sample is called
A)percentile
B)coefficient of variation
C)quartile
D)Z-score
8.
If the mean, median and mode for a given population all equal 25, then we know that its distribution is
A)normal.
B)skewed to the right.
C)symmetric.
D)skewed to the left.
9.
When using the Chebyshev's theorem to obtain the bounds for 99.73 percent of the values in a population, the interval generally will be __________________ the interval obtained for the same percentage if normal distribution is assumed (empirical rule).
A)narrower than
B)wider than
C)the same as
10.
The population mean is the average of the population measurements.
A)True
B)False
11.
It is appropriate to use the Empirical Rule to describe a population that is extremely skewed.
A)True
B)False
12.
The median is the value below which and above which approximately 50 percent of the measurements lie.
A)True
B)False
13.
In general, an interval that contains a specified percentage of the individual measurements in a population is called a three sigma interval.
A)True
B)False





To learn more about the book this website supports, please visit its Information Center.
(c)2007 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Business Statistic in PracticeOnline Learning Center

Home > Chapter 2 > Multiple Choice and True/False Quiz