Figure 13.9 suggests that under the null, both samples have the same mean and variance, but under the alternative, they have different means and variances. I thought that the null hypothesis also allows for the two samples to have different variances. It is very minor, and I'm not even sure if I'm right, but I thought I'd mention it.
Thank you for the great book!
Figure 13.9 suggests that under the null, both samples have the same mean and variance, but under the alternative, they have different means and variances. I thought that the null hypothesis also allows for the two samples to have different variances. It is very minor, and I'm not even sure if I'm right, but I thought I'd mention it. Thank you for the great book!