I have been given some data and I need to do some significance testing on it.
The data revolves around food types. Firstly I have been given data in Excel, about 1000 rows, of a food type with the date the food was bought and date it went off, I need to test whether after X number of days, a significant number of the food has expired.
So simply put, I have data on about 1000 types of a food, with the number of days it stayed edible and I need to check whether a day X=a the food becomes significantly bad.
I also have further data on the food; location grown, conditions grown, food used etc. So after this I would like to calculate similar tests to see whether these conditions are also significant.
I hope this all makes sense and I welcome any help you guys can give!