Binomial Probablility Calculator Excel File
Author: Oregon Public Health Division
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Binomial Probablility Calculator Excel File 1 id3375
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This excel file will help assess the potential utlity of a case-control study for a foodborne disease outbreak investigation. It calculates cumulative binomial probabilities. Example: During an investigation of a cluster of salmonellosis cases, four of your eight cases recall eating alfalfa sprouts during the week before onset. Is that a suspiciously high proportion? If you can estimate the "background" rate of sprout consumption in your population (e.g., from survey data or even a wild guess), you can calculate the odds of getting as many or more sprouts eaters in a sample of N independent cases by chance alone. Hint: the background rate of sprout consumption is 10%, and finding even 4/8 by chance alone is highly unlikely.
Program: Environmental Health
Submitted Date: May 30, 2013 | Modified Date: Sep 30, 2025
Primary Toolkit: Food Safety Toolkit | Secondary Toolkit: N/A
Jurisdiction:
Institution Type: State,
Keywords: Environmental Health, Food Safety and Inspection
