One Sample Z Test Of Proportions
One Sample Z Test Of Proportions. Where and are the means of the two samples, δ is the hypothesized difference between the population means (0 if testing for equal means), σ 1 and σ 2 are the standard deviations of the two populations, and n 1 and n 2 are the sizes of the two samples. Two normally distributed but independent populations, σ is known.
We can use for one population or two population means provided that the population standard deviations are known.
Two normally distributed but independent populations, σ is known. We can use for one population or two population means provided that the population standard deviations are known. Also, via the central limit theorem, the. Two normally distributed but independent populations, σ is known.