Hypothesis about the population mean

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Assume you wish to test a hypothesis about the population mean. You take a sample, n=100. Your sample mean is 10 and sample standard deviation is 2.

a) Use a 2 tail test, with 5% significance to test the null hypothesis that µ=12. Carefully interpret the result using a diagram. Could your conclusion be incorrect?

b) How would conclusion change with a one tail test and with a change in significance?

Reference no: EM132502851

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