Calculate type II error

Question

How can I calculate the theoretical type II error in this particular case using R?

a <- rnorm(500, 10, 5)
b <- rnorm(500, 10, 5)
t.test(a, b)

The two variables have the same mean. The theoretical type-II error rate in this case is 0. — Dason, Aug 24 '15 at 15:48
... or undefined ... you might be looking for `power.t.test(n=500,delta=0)` — Ben Bolker, Aug 24 '15 at 15:51

score 1 · Answer 1 · answered Mar 04 '18 at 23:08

1

Type 2 error is the probability of failing to reject the null when the null is indeed false. In this case both variables a and b have the same mean 10. So, the null is not false. Therefore, there is no question of type II error here.

answered Mar 04 '18 at 23:08

Aummul Baneen Manasawala

11
1

Calculate type II error

1 Answers1