# Further Statistics Question!

#1
Hi, I've gotten the first line but have no clue what they're doing for part c from there on!
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#2
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#3
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4 months ago
#4
You realize its a binomial question, but because of the sample size, they use a normal approximation with mean ... and variance ....
Then the distribution of the sample mean has mean ... and variance (or standard deviation) ...

I take it you understand the usual null hypothesis test for a normal distribution? If so, once you have the above sorted, you should be able to undertand the MS?
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#5
(Original post by mqb2766)
You realize its a binomial question, but because of the sample size, they use a normal approximation with mean ... and variance ....
Then the distribution of the sample mean has mean ... and variance (or standard deviation) ...

I take it you understand the usual null hypothesis test for a normal distribution? If so, once you have the above sorted, you should be able to undertand the MS?
Yes, it is part c that I do not get.
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4 months ago
#6
(Original post by snow.fall15)
Yes, it is part c that I do not get.
I was talking about part c). On line 2 they start by using the normal approxation (for the sample mean) with mean ... and standard deviation (variance) ...
After that line, its just a normal distribution null hypothesis test, which I presume you understand? Line 3 appears a bit random (completely wrong for the question) though. Lines 2 and 4+ are fine and totally unrelated to line 3.
Last edited by mqb2766; 4 months ago
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