Calculate the population mean margin of error

Reference no: EM13111930

Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16. We wish to be 90% certain that we are within 8 IQ points of true mean. Find out the sample size.

Reference no: EM13111930

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