Questions tagged [z-test]

I'm trying to perform a one sample t test with given mean and sd. Sample mean is 100.5 population mean is 100 population standard deviation is 2.19 and sample size is 50. although it is relatively simple to perfrom a t-test with a datasheet, I don't…

I know Z test is applied for Test concerning two proportions. Let there be two treatments with population proportions p1 and p2 and sample sizes of n1 and n2 respectively. Samples associated with a certain event are x1 and x2 with the respective…