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Consider the population of adult females resident in Melbourne. Our focus is on the population mean...

Consider the population of adult females resident in Melbourne. Our focus is on the population mean height. Assume we do not know ? (population standard deviation) or the population mean, µ. We take a sample of adult females resident in Melbourne (n=100) and calculate the sample mean height as 70 cm and the sample standard deviation as 25cm.

i) Derive the 95% confidence interval for the population mean

ii) Compare your interval here and last week – which is larger and why?

Math   Statistics-And-Probability   
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