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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
3-9. The manager for the Jiffy Lube in Saratoga, Florida, has collected data on the number of customers who agreed
to purchase an air filter when they were also having their oil changed. The sample data are shown as follows:
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   21     22     25     21     22     23     10     19     25     14     17     18   Â
a. Compute the mean, median, and mode for these data.
b. Indicate whether the data are skewed or symmetrical.
c. Construct a box and whisker plot for these data.
Referring to your answer in part b, does the box plot support your conclusion about skewness? Discuss.
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