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A sample of 8 people receive an average hourly pay of 9.50 with a standard deviation of 50p. Calculate a 95% confidence interval for the

A sample of 8 people receive an average hourly pay of 9.50 with a standard deviation of 50p. Calculate a 95% confidence interval for the mean hourly rate of pay, assuming that the rates of pay are normally distributed. How would your answer change if you were unsure about the probability distribution of your sample

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