Among 100 fish caught in a certain lake, 25 were inedible as a result of chemical pollution. Construct (an approximate) 95% confidence interval for the true proportion of inedible fish. Round the lower and the upper bound of the interval to 3 decimal places. Hint: recall that the variance of the sample proportion is var[p] = p(1- Also, you may want to use one of the following: qnorm(0.95, lower.tail-FALSE) = -1.644854 qnorm(0.05, lower.tail-FALSE) 1.644854 qnorm(0.025, lower. tail-FALSE) = 1.959964 O (0.179, 0.321) O (0.247, 0.253) O (0.165, 0.335) O (0.246, 0.254)

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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Among 100 fish caught in a certain lake, 25 were inedible as a result of chemical pollution.
Construct (an approximate) 95% confidence interval for the true proportion of inedible fish.
Round the lower and the upper bound of the interval to 3 decimal places.
Hint: recall that the variance of the sample proportion is
var[p] = p(1-
Also, you may want to use one of the following:
qnorm(0.95, lower.tail-FALSE) = -1.644854
qnorm(0.05, lower.tail-FALSE)
1.644854
qnorm(0.025, lower. tail-FALSE) = 1.959964
O (0.179, 0.321)
O (0.247, 0.253)
O (0.165, 0.335)
O (0.246, 0.254)
Transcribed Image Text:Among 100 fish caught in a certain lake, 25 were inedible as a result of chemical pollution. Construct (an approximate) 95% confidence interval for the true proportion of inedible fish. Round the lower and the upper bound of the interval to 3 decimal places. Hint: recall that the variance of the sample proportion is var[p] = p(1- Also, you may want to use one of the following: qnorm(0.95, lower.tail-FALSE) = -1.644854 qnorm(0.05, lower.tail-FALSE) 1.644854 qnorm(0.025, lower. tail-FALSE) = 1.959964 O (0.179, 0.321) O (0.247, 0.253) O (0.165, 0.335) O (0.246, 0.254)
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