A Visual Approach to SPSS for Windows 2nd Edition by Leonard Stern

تمرين 2

Note: The data files named in these exercises are available at the publisher's website for this text, http://www.pearsonhighered.com/stern2e.
An experimenter asks participants to read two pages of instructions for a task. Each participant's reading times are recorded in tenths of a second for each page. The file ReadtimesTwoPage.sav contains the reading time of each participant for page one in the variable time1 and for page two in the variable time2. Determine whether the median time to read pages one and two differs significantly.