Hi,
I am currently teaching myself A level statistics from a textbook, which can be difficult when I can't work out how to get from the question to the answer given in the book, so here's hoping you can help!
I keep thinking I've understood the process for type II errors, and then a question comes along that knocks this belief. I've been thinking on the below question for so long that I'm most likely now completely overthinking it, but I'm pretty stuck. It's only the second part of the question, I've got the type I error correct.
Workings below:
The answer given is 0.1119, which is 1  my answer abover, but can't work out why this step in the process would be next?
Thanks, DJW
I am currently teaching myself A level statistics from a textbook, which can be difficult when I can't work out how to get from the question to the answer given in the book, so here's hoping you can help!
I keep thinking I've understood the process for type II errors, and then a question comes along that knocks this belief. I've been thinking on the below question for so long that I'm most likely now completely overthinking it, but I'm pretty stuck. It's only the second part of the question, I've got the type I error correct.
Workings below:
The answer given is 0.1119, which is 1  my answer abover, but can't work out why this step in the process would be next?
Thanks, DJW
Attachments

40.2 KB Views: 0