If you've ever had the need to easily and quickly check out the statistical significance of percentages reported in a survey, the Nelson Research Significance Tester added to your Excel File is ready when your are. 

After pressing the link, the Significance Tester will be loaded onto your desktop and Excel will open.  Simply save the program like you would any other file by using the "save" instructions in the "File" menu.

Then, anytime you are wondering whether the difference between any two percentages reported in the survey are statistically significant (and at what confidence level), simply record the two percentages and the corresponding two sample sizes in the spaces provided on the spreadsheet,  The calculations and analysis are done automatically.