In a combined study of northern pike, cutthroat trout, rainbow
trout, and lake trout, it was found that 40 out of 809 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. (Use 4 decimal places.)
(b) Find a 90% confidence interval for p. (Use 4 decimal
places.)
| lower limit | |
| upper limit |
Give a brief explanation of the meaning of the interval.
90% of the confidence intervals created using this method would
include the true catch-and-release mortality rate.10% of the all
confidence intervals would include the true catch-and-release
mortality rate. 90% of the all
confidence intervals would include the true catch-and-release
mortality rate.10% of the confidence intervals created using this
method would include the true catch-and-release mortality rate.
