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Statistical Inference

Quick questions on Sampling distributions and the central limit theorem: the distribution of the sample mean - SQA Advanced Higher Statistics

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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A population has σ=20\sigma = 20. What sample size gives a standard error of 44? [2 marks]
What is q2?
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State the distribution of the sample mean of size 99 from a normal population N(100,36)N(100, 36). [2 marks]

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