Microsoft Excel, a spreadsheet and data analysis program, is available as a stand-alone program or as a component of the Microsoft Office productivity suite. Excel 2007 included a number of new ...

Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...

In the following example, a box plot is used to compare the delay times for airline flights during the Christmas holidays with the delay times prior to the holiday period. The following statements ...

The following statements use the flight delay data of Example 18.1 to illustrate how to create side-by-side box-and-whisker plots with notches: title 'Analysis of Airline Departure Delays'; title2 ...