FindingData

P value, z-test & t-test

Dec 02, 2020

Sample size	population Variance	Normality of sample	Sample Variance	Type of test
Large(>30)	Known	Normal or Non Normal		Z-test
Large(>30)	Unknown	Normal	Use this to calculate t-score	t-test
Large(>30)	Unknown	Unknown	Use this to calculate z-score	Z-test
Small(<30)	Known	Normal		Z-test
Small(<30)	Unknown	Normal	Use this to calculate t score	t-test