Question

You have an SRS of size n=9 from a normal distribution with a standard deviation of 1. You wish to test:
Ho:u=0 HA:u>0
You decide to reject Ho if Xbar>0 and to accept Ho otherwise

Find the probability of a type 1 error. That is, find the probability that the test rejects Ho when in fact u=0.

Answer 1

Ho and HA are part of the same hypothesis conclusion set; they have to "match up"

Answer 2

if Ho: u=0 then HA: u not= 0

if Ho: u<=0 then HA: u>0

if Ho: u>=0 then HA: u<0

Answer 3

So I'm not necessarily finding a certain number for the probability?

Answer 4

hard to tell, this seems more like your finding out about how to mess things up

Answer 5

If your hypothesis is not well defined things go bad

Answer 6

hypo test was like the last section in elementary stats; and im still a bit hazy with them

Answer 7

Whats srs stand for?

Answer 8

simple random sample ..... ugh. noone in my class was ever able to define that so after the test it became: take a simple random sample, whatever that may be, ... :)

Answer 9

Haha this question is coming from my stats book. Worst book ever... I guess I will try and find someone from my class that thinks they know how to do it because I have no idea what to do. Thanks for looking at it though!

Answer 10

yeah, good luck with it :)