Quiz #3

Data Set:  The data you will analyze is from a reading comprehension study where students were taught to read using different techniques.  The data sets are student scores on a reading comprehension pre-test given to see if the groups were equal in reading skills prior to the study. 

This data exists in Excel Data or Text format.

Analysis:  Using Excel, perform the most appropriate statistical analysis required to answer the following questions.  Print out a copy of the analysis you do and answer the questions in writing on the printout that relates to the question. 
 

1. What is the mean, median and mode for Group#1?  Group#2?  Is the data in either of the groups normally distributed? Explain how you arrived at  your conclusion based on the results of the statistics you performed on the data.
2. Is there a significant difference in the mean reading comprehension scores between the groups? Do the results of the statistical analysis indicate that the groups are OK to use in the study?   Explain how you arrived at  your conclusion based on the results of the statistics you performed on the data.

Answer keys are in the section of DIG Stats

Original work on this document was done by Central Virginia Governor's School student Goss Nuzzo-Jones (Class of '01).

Copyright © 2001 Central Virginia Governor's School for Science and Technology Lynchburg, VA