Solutions Statistics

Credit Union Incomes. Find the 90% confidence interval of the population mean for the incomes of Pen

Question: Credit Union Incomes. Find the 90% confidence interval of the population mean for the incomes of Pennsylvania credit unions. A random sample of 50 credit unions is shown. The data are in thousands of dollars.

84 14 31 72 26
49 252 104 31 8
3 18 72 23 55
133 16 29 225 138
85 24 391 72 158
4340 346 19 5 846
461 254 125 61 123
60 29 10 366 47
28 254 6 77 21
97 6 17 8 82
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