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Expert-verified Found in: Page 152 ### Introductory Statistics

Book edition OER 2018
Author(s) Barbara Illowsky, Susan Dean
Pages 902 pages
ISBN 9781938168208 # Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976–1977 through 2004–2005. • μ = 1000 FTES • median = 1,014 FTES• σ = 474 FTES • first quartile = 528.5 FTES • third quartile = 1,447.5 FTES • n = 29 years What additional information is needed to construct a box plot for the FTES for 2005-2006 through 2010-2011 and a box plot for the FTES for 1976-1977 through 2004-2005?

To create the box plots, we need to know the minimum and maximum FTES for 2005-2006 through 2010-2011, as well as the minimum and maximum FTES for 1976-1977 through 2004-2005.

See the step by step solution

## Step 1: To find

What additional information is needed to construct a box plot for the FTES for 2005-2006 through 2010-2011 and a box plot for the FTES for 1976-1977 through 2004-2005.

## Step 2: Explanation

Box plots are a graphical tool used in statistics to show the concentration of data. They also show how far the extreme numbers differ from the majority of the data. The smallest value, the first quartile, the median, the third quartile, and the maximum value are used to create a box plot.

Use a horizontal or vertical number line and a rectangular box to make a box plot. The axis's ends are labelled by the smallest and largest data values. One end of the box is marked by the first quartile, while the other end is marked by the third quartile. 50 percent of the data is included within the box. From the box's ends to the smallest and greatest data values, the "whiskers" extend. The median or second quartile can be in the middle of the first and third quartiles, or it can be either one or the other.

For the two datasets stated above, we know the median, first quartile, and third quartile. As a result, for both of these data sets, the additional information required to construct the box plots is the minimum and maximum.

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