(Answered) Q1 a random sample of 50 students has mean earnings of 3350

Management Studies

Q1: A random sample of 50 students has mean earnings of 3350 and standard deviation 673.Find margin of error if c=0.95

Q2: A sample of 63 students yield a mean income of 3287.standard deviation =972. Determine the margin of error in estimating the population mean at 95% confidence.

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