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In a certain town, a random sample of executives have the following personal incomes (in thousands); Assume the population of incomes is normally distributed. Find

In a certain town, a random sample of executives have the following personal incomes (in thousands); Assume the population of incomes is normally distributed. Find the 98% confidence interval for the mean income.

35
43
29
55
63
72
28
33
36
41
42
57
38
30

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