Refer to the data in Exercise 11-13 on oxygen demand. Find a 99% confidence interval on
Chapter 11, Problem 11-51(choose chapter or problem)
Refer to the data in Exercise 11-13 on oxygen demand. Find a 99% confidence interval on each of the following: (a) (b) (c) Find a 95% confidence interval on mean BOD when the time is 8 days.
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