Biologists in Minnesota are interested in determining if there is a difference in the invasion rate of Asian Carp (which can be detrimental to the environment) between the Mississippi River and Lake Mille Lacs. In the Mississippi River, it was found that 206 of 579 fish caught were Asian Carp. In Lake Mille Lacs, 28 of 132 fish caught were Asian Carp. Let p, = the true proportion of Asian Carp in the Mississippi River and let p2 = the true proportion of Asian Carp in Lake Mille Lacs. A test of Ho: P1 = P2 vs. Ha: P₁ P₂ resulted in a p-value of 0.0015. Which of the following is a correct conclusion? (A) The test is not appropriate, since the researchers should have conducted a one-sided test. (B) The test is not appropriate, since the sample size is too small to conduct an inference test for proportions. (C) The test is not appropriate, since the two sample sizes are very different. (D) The p-value of this test is large, indicating we have sufficient evidence to conclude that a difference exists in the invasion rates of Asian Carp for the Mississippi River and Lake Mille Lacs. (E) The p-value of this test is smaller than most reasonable significance levels, indicating we have sufficient evidence to conclude that a difference exists in the invasion rates of Asian Carp between the Mississippi River and Lake Mille Lacs.
Biologists in Minnesota are interested in determining if there is a difference in the invasion rate of Asian Carp (which can be detrimental to the environment) between the Mississippi River and Lake Mille Lacs. In the Mississippi River, it was found that 206 of 579 fish caught were Asian Carp. In Lake Mille Lacs, 28 of 132 fish caught were Asian Carp. Let p, = the true proportion of Asian Carp in the Mississippi River and let p2 = the true proportion of Asian Carp in Lake Mille Lacs. A test of Ho: P1 = P2 vs. Ha: P₁ P₂ resulted in a p-value of 0.0015. Which of the following is a correct conclusion? (A) The test is not appropriate, since the researchers should have conducted a one-sided test. (B) The test is not appropriate, since the sample size is too small to conduct an inference test for proportions. (C) The test is not appropriate, since the two sample sizes are very different. (D) The p-value of this test is large, indicating we have sufficient evidence to conclude that a difference exists in the invasion rates of Asian Carp for the Mississippi River and Lake Mille Lacs. (E) The p-value of this test is smaller than most reasonable significance levels, indicating we have sufficient evidence to conclude that a difference exists in the invasion rates of Asian Carp between the Mississippi River and Lake Mille Lacs.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Biologists in Minnesota are interested in determining if there is a difference in the invasion rate of
Asian Carp (which can be detrimental to the environment) between the Mississippi River and Lake
Mille Lacs. In the Mississippi River, it was found that 206 of 579 fish caught were Asian Carp. In Lake
Mille Lacs, 28 of 132 fish caught were Asian Carp. Let p, = the true proportion of Asian Carp in the
Mississippi River and let p2 = the true proportion of Asian Carp in Lake Mille Lacs. A test of Ho: P₁ = P2
vs. Ha: P₁ P₂ resulted in a p-value of 0.0015. Which of the following is a correct conclusion?
(A) The test is not appropriate, since the researchers should have conducted a one-sided test.
(B) The test is not appropriate, since the sample size is too small to conduct an inference test for
proportions.
(C) The test is not appropriate, since the two sample sizes are very different.
(D) The p-value of this test is large, indicating we have sufficient evidence to conclude that a
difference exists in the invasion rates of Asian Carp for the Mississippi River and Lake Mille Lacs.
(E) The p-value of this test is smaller than most reasonable significance levels, indicating we have
sufficient evidence to conclude that a difference exists in the invasion rates of Asian Carp
between the Mississippi River and Lake Mille Lacs.
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