Example 2

Kayla is trying to estimate the cost of a house painter. She receives the following estimates, in dollars.[br][br]1288 1640 1547 1842 1553 1604 2858 1150 1844 1045 1347[br][br]She takes the mean of the data and states that the estimated cost of a house painter is $1,610.73. Is her estimate accurate?
[list=1][br][*]Order the data from least to greatest.[br][/*][*]Calculate the interquartile range (IQR).[br][/*][*]Multiply 1.5 by the IQR.[br][/*][*]Determine if there are any outliers at the lower end of the data.[br][/*][*]Determine if there are any outliers at the upper end of the data.[br][/*][*]List all the outliers.[br][/*][*]Create a box plot of the data set.[br][/*][*]Describe how the outlier has influenced the center of the data.[br][/*][*]Describe how the outlier has influenced the shape of the data.[br][/*][*]Describe how the outlier has influenced the spread of the data.[br][/*][*]Determine a reasonable estimate for the cost of a house painter.[br][/*][/list][br]This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url=http://www.walch.com/]www.walch.com[/url] for more information.

Information: Example 2