Homework 6, question 1

[yasmine]

When calculating the PE, cut off, and estimated standard error, I know how to do all this i'm just confused because there is 2 data sets. Do we compute 2 separate confidence intervals for each set, or combing them into 1? Thank you!

[Taeho Kim]

Hi yasmine,

Although we are talking about two population means,
there is only ONE target parameter.
So, we only have one confidence interval.

Briefly take look at page 7 and 8 in Unit 11 slide.
It will provide you a sufficient clarification.