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The waiting times for patients to see a doctor in a hospital can be modelled with a normal distribution with known variance of 10 minutes.
The waiting times for patients to see a doctor in a hospital can be modelled with a normal distribution with known variance of 10 minutes.
(a) A random sample of 100 patients has a total waiting time of 3540 minutes. Calculate a 98% confidence interval for the population mean of waiting times, giving values to four significant figures.
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