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A random sample of 36 rainbow trout caught at Brainard Lake in Colorado has a mean length of 11.9 inches with a standard deviation of 2.8 inches

A random sample of 36 rainbow trout caught at Brainard Lake in Colorado has a mean length of 11.9 inches with a standard deviation of 2.8 inches. Assuming that the lengths of rainbow trout in this lake are normally distributed, find a 98% confidence interval for the population mean length of all rainbow trout in this lake. Round answers to the nearest hundredth.  


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answered by: gavin
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