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You want to obtain a sample to estimate a population mean. Based on previous evidence, you...

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Basic Math

You want to obtain a sample to estimate a population mean. Basedon previous evidence, you believe the population standard deviationis approximately σ=58.2σ=58.2. You would like to be 95% confidentthat your estimate is within 2 of the true population mean. Howlarge of a sample size is required?

Use a z* value accurate to TWO places for this problem. (Not z =2)

Answer & Explanation Solved by verified expert
3.6 Ratings (514 Votes)
A 1001CI for population mean is expressed aswhere Sample mean Standard    See Answer
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