For problem 8-75, construct a 95% confidence interval for the difference between average catch in the two locations.
In problem According to Fortune, there has been an average decrease of 86% in the Atlantic cod catch over the last two decades. Suppose that two areas are monitored for catch sizes and one of them has a daily average of 1.7 tons and a standard deviation of 0.4 ton, while the other has an average daily catch of 1.5 tons and a standard deviation of 0.7 ton. Both estimates are obtained from independent random samples of 25 days.

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