Find an Estimate of the Sample Size Needed to Obtain $= 0.90$

question 30

Multiple Choice

Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval of a
population mean.
-Margin of error $= 0.90$ , sample standard deviation $= 9$

• A) 360
• B) 200
• C) 400
• D) 20

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