Mathematics, 18.03.2021 01:20 jasminortega2002
Kate Sanders, a researcher in the department of biology at IPFW University, studied the effect of agriculture contaminants on the fish population for streams in Northeastern Indiana (April 2012). Specially designed traps collected samples of fish at each of four stream locations. A research question was, "Did the differences in agricultural contaminants found at the four locations alter the proportion of the fish population by gender?" Observed frequencies were as follows:
Stream Location
Gender A B C D
Male 49 44 49 39
Female 41 46 36 44
a. Focusing on the proportion of male fish at each location, test the hypothesis that the population proportions are equal for all four locations. Use a 0.05 level of significance.
P-value =
b. Does it appear that the differences in agricultural contaminants found at the four locations altered the fish population by gender?
Answers: 1
Mathematics, 21.06.2019 20:10
Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36
Answers: 1
Kate Sanders, a researcher in the department of biology at IPFW University, studied the effect of ag...
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