Salmon weights: assume that the weights of spawning chinook salmon in the columbia river are normally distributed. you randomly catch and weigh 17 such salmon. the mean weight from your sample is 19.2pounds with a standard deviation of 4.4 pounds. you want to construct a 90% confidence interval for the mean weight of all spawning chinook salmon in the columbia river.

(a) what is the point estimate for the mean weight of all spawning chinook salmon in the columbia river?
pounds

(b) construct the 90% confidence interval for the mean weight of all spawning chinook salmon in the columbia river. round your answers to 1 decimal place.
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