Posted by **JACKIE** on Saturday, June 22, 2013 at 12:22am.

Sorry if this has been posted twice, but we have tried this numerous times and can not work it. Due in the morning. Suppose that a hypothesis test is to be carried out by using á = 0.05. What is the probability of committing a type I error? (Give your answer correct to two decimal places.)

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**Jakhis**, Saturday, June 22, 2013 at 4:55am
Sorry, but what is a type I error?

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**JACKIE**, Saturday, June 22, 2013 at 7:38am
occurs if you reject the null hypothesis when it I true

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**MathMate**, Saturday, June 22, 2013 at 9:45am
The probability of committing a type I error is the level of significance, α.

See:

http://www.cs.uni.edu/~campbell/stat/inf5.html

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**Jackie**, Saturday, June 22, 2013 at 9:56am
We have look at this site and it did not help us at all, with it only giving us the a = 0.05, we do not know how to work it out. There has been 4 of us working on this and no one can get it.

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**MathMate**, Saturday, June 22, 2013 at 5:56pm
The probability is all the question wanted. If you have a more detailed question, kindly post.

We do not generally follow all your previous posts.

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**Andra**, Wednesday, April 22, 2015 at 8:06pm
The answer is just what a equals.

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