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Exam Hack | CIE A2 Maths | S2 | Hypothesis Testing - Discrete Distribution Question (Patreon)

Published:
2022-11-19 01:21:50
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2026-06
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  • Hypothesis Testing - Discrete Distributions - WORKSHEET.pdf

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Eirene Chiam

Hi, i wanted to ask something! For example, say we have a random variable X that is distributed with binomial or poisson distribution. Say for example the critical region is X <= 2, so p(Type 1) = p(X<=2), so then p(Type 2) = p(X>=3) right? So then if the critical region is X< 2 , p(Type 1) = p(X<= 1), would p(type 2)= p(X>=2)? or would it be p(X>=3)? my exam is tomorrow so any help at all would be so appreciated!!

king4567

There's a mistake with Q(9b) in the worksheet; Probability of type 2 error is written as 0.138 in the answers, whereas in the actual mark scheme it is 0.318.

Aduri

hello, just wanted to clarify something, for question two, in order to find the critical path's greatest value, you calculated an expression which contains "9.4(power 4) over 4!", instead of 9,2(power 4) over 4!...am i missing something?

Aduri

Hello, just wanted clear something, um...I think you missed explaining Confidence Intervals questions for this worksheet. I couldn't find the explanation for that in the video( sorry if it was included,, if it was could someone mention the timeline where it was posted in the video?), Cheers!

Intuitive
>>96687935

Hey I explain confidence intervals in the “Sampling and Estimation” video/worksheet. All the theory and proofs are on that worksheet :)