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Mathematics, 20.02.2020 01:05 korbenbrown7554

From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.69 with a standard deviation of 3.54. What is the 95% confidence interval for the amount of time spent on administrative issues?

a.(19.24, 24.14)
b.(21.78, 22.60)
c.(20.93, 22.46)
d.(20.71, 22.67)

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