In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found that 28 out of 800 fish died when caught and...
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1. In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found

that 28 out of 800 fish died when caught and released using barbless hooks on flies or lures. All hooks were removed from the fish.


2.In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found that 24 out of 848 fish died when caught and released using barbless hooks on flies or lures. All hooks were removed from the fish.


(a) Let p represent the proportion of all pike and trout that die (i.e., p is the mortality rate) when caught and released using barbless hooks. Find a point estimate for p. (Round your answer to four decimal places.)

(b) Find a 99% confidence interval for p. (Round your answers to three decimal places.)

lower limit    

upper limit    

Give a brief explanation of the meaning of the interval.

99% of the confidence intervals created using this method would include the true catch-and-release mortality rate.

99% of all confidence intervals would include the true catch-and-release mortality rate.    

1% of all confidence intervals would include the true catch-and-release mortality rate.

1% of the confidence intervals created using this method would include the true catch-and-release mortality rate.


(c) Is the normal approximation to the binomial justified in this problem? Explain.

Yes; np < 5 and nq < 5.

Yes; np > 5 and nq > 5.    

No; np > 5 and nq < 5.

No; np < 5 and nq > 5.

Top Answer

a) p = 0.0283 b) lower limit=0.014 upper limit=0.043 99% of the... View the full answer

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