Question: Construct a 90% confidence interval for the population standard deviation o at Bank A. Bank A 6.4 6.6 6.7 6.8 7.1 7.2 7.6 7.8 7.8

Construct a 90% confidence interval for the population standard deviation o at Bank A.

Bank A

6.4

6.6

6.7

6.8

7.1

7.2

7.6

7.8

7.8

7.8

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