Question

Hypothesis testing: calculating type 2 error

Answer 1

http://prntscr.com/62eqk1

Answer 2

I have no idea what I"m doing >.<

Answer 3

Honestly this isn't really the kind of thing anyone else can memorize for you. The best bet is to run around your house a billion times to get your antsiness out of your system, sit up straight, breathe, and focus on your no doubt dry textbook to see how to handle the procedure of calculating type 2 errors. There are probably different opinions out there on this, but that's all I got sorry =( good luck though!

Answer 4

lol I can't even find any straightforward sources that explain it -.-

Answer 5

at least all the ones I've tried to find I've just wound up getting the problem wrong

Answer 6

are you in Stats in Sports?

Answer 7

AP stats here; apparently it's not on the AP test but I have 2 questions on a webassign I have to complete. I missed the days we were talking about hypothesis testing so most of the stuff I'm doing is based off what i could gather from my teacher's powerpoints and the internet

Answer 8

thie file i sent has type one and type 2 error

Answer 9

yes unfortunately I don't think I understand how to obtain calculations for type I/II errors

Answer 10

can i see what you're testing

Answer 11

I might just go look at a solved problem and substitute my numbers

Answer 12

(check my first post)

Answer 13

actually I just found a video that might help

Answer 14

idk if this will help or not but

Answer 15

lol still not getting it

Answer 16

this might help

http://www.ssc.wisc.edu/~gwallace/PA_818/Resources/Type%20II%20Error%20and%20Power%20Calculations.pdf

Answer 17

Okay so for my problem I did
beta = area to the right of the normal distribution with mu=266 and sigma=70/sqrt(832) for critical value 269.35439
and I got 0.084. Which according to webassign is wrong...

Answer 18

in fact my webassign is telling me that (at least with practice another version) I should be getting a number with at least less than a thousandth. I don't understand.

Answer 19

@ganeshie8 , any ideas? I did use -2.3263 for my critical z value

Answer 20

when z = -2.33, what did you get for xbar?

Answer 21

269.35439?

Answer 22

anyways I redid the problem and I'm getting .0834449225

Answer 23

I think I need 3 decimal places which might be the problem

Answer 24

Yup. when I typed .084 it said it was wrong because it was actually
.0834449225 -.-

Answer 25

oh well. thanks for helping guys I actually understand the type two error calculations