# Thread: Testing question (If the reliability and variance )

1. ## Testing question (If the reliability and variance )

If the reliability and variance of a test are 0/36 and 4, we can be 95% sure that 15 as a score lies between :

a) 14.28-15.72
b) 4-16.44
c) 5.56-16.44
d) 11.8-18.2

How can we answer these kinds of questions?

2. ## Re: Testing question (If the reliability and variance )

By studying mathematical probability and statistics.

3. ## Re: Testing question (If the reliability and variance )

5jj, do you have any idea about the answer? The whole meaning is a bit vague to me!

4. ## Re: Testing question (If the reliability and variance )

I have no idea what the answer is. I failed my first year Stats in 1965, and haven't looked at such things since.

5. ## Re: Testing question (If the reliability and variance )

I think you need to find a Maths forum. This really isn't an English question. I got a C at O Level Maths and my two most detested sub-subjects were statistics and probability.

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