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a research worker wishes to estimate the mean of a population by using sufficiently large sample. the probability is 0.95 that the sample mean will not differ from the true mean by more 25 percentage of
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a research worker wishes to estimate the mean of a population by using sufficiently large sample. the probability is 0.95 that the sample mean will not differ from the true mean by more 25 percentage of the standard deviation how latge a sample should be taken?

User Boulder
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6 votes
answer : 61

Therefore, the research worker should take a sample size of at least 61 to achieve the desired level of accuracy.
User Sunny Drall
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