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Calculate the minimum sample size

Suppose a sample of size 400 yields p = 0.5 You'd like to construct a confidence interval with a margin of error only half as
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need to explain how i obtain the sample size which is 370 here's the rest of the information i don't know how to writ this out?c
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2. asked by Anoymous
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A simple random sample will be obtained from a normally distributed population. Find the minimum sample size needed to be 99%
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2. asked by Lindsey
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Calculate the minimum sample size required to find the 90% interval estimate for a population proportion if you want to be
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2. asked by King
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a simple random sample will be obtained from a normally distributed population. find the minimum sample size needed to be 95%
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2. asked by lucy
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Suppose a population is sampled and the sample mean is 16.8. The sample standard deviation is 6.0 I am to assume the sample is
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2. asked by Mandi
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Two independent samples from populations that are normally distributed produced the following statistics: for sample 1 the
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In a study about children’s pocket money, two samples of schoolchildren were asked how much money they received each week. In
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2. asked by Jay
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If the true population standard deviation was known to be 3, then approximately what minimum sample size would you need in an
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2. asked by Anonymous
3. 526 views
If the true population standard deviation was known to be 3.0, then approximately what minimum sample size would you need in a
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2. asked by Marissa
3. 1,257 views