Suppose we are interested in estimating the mean height of M.A. students in Delhi University. An average height estimated from a random sample of size 30 is better than that estimated from a random sample of size 20 because:
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Sampling distributions and limit theorems has come up 25 times in 7 exams since 2007.
This question is on Sampling distributions of the mean and proportion, part of Sampling distributions and limit theorems in Statistics.
How sample statistics vary from sample to sample and how precisely they estimate.
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Question from the DSE 2011 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.