2019 AP Statistics FRQ #4

Walkthrough of the 2019 AP Statistics FRQ #4

Corrections:
Should be using pooled variance. The resulting z statistic and p value are nearly the same when using pooled or unpooled.

[FaiFaiSai]

Thanks for this tutorial, literally learned 2 prop z test right now and my test is tomorrow.

[thewildmonkey]

Going into my ap in an hour thanks so much

[andreana]

can we use unpooled and still get the mark?