Intro to StatCrunch-Graphs and Descriptive Statistics STAT 20

 Intro to StatCrunch-Graphs and Descriptive Statistics STAT 202 Miller Thursday August 30, 2012 Please review the file under “A Brief Guide to StatCrunch and Lab Submissions” (posted on Blackboard) while completing this lab. You will use StatCrunch to answer the following questions. Your lab should be submitted as a Word document. Please copy and paste any graphs that you create into your lab document. Any responses must be easy to read and labeled with the appropriate problem number.Please save your solutions to your g:/ drive (or your own computer) and submit the lab via Blackboard. Background: A common psychological experiment tests numerical memory-a subjects ability to repeat back a string of numbers. For this particular experiment two trials were conducted with each of 52 subjects; number strings were delivered both verbally and visually. The data was collected from 4 universities and online between July 2010 and December 2010. Along with detailed information pertaining to the experiment (such as the place, date and time of the experiment, and type of delivery), the experimenters collected information about the subject (age and gender) and recorded the longest number of digits that the subject was able to repeat back to them (Limit #). Begin by loading the data into StatCrunch. Use the data file that I have provided (numericalmemory.txt) and follow the directions provided in “Intro to StatCrunch and Labs.” Make sure that you select “comma” as your delimiter. Once the file is loaded save your data to your G drive so that you will be able to access it again in the future. Classify the variables “Affiliation”, “Gender”, “Age”, “Trial Num”, and “Limit#” as categorical or quantitative. To get an idea of where the subjects were tested make a pie chart for “Affiliation.”

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