Kate Sanders, a researcher in the department of biology at IPFW University, stud

Question

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 Locations Gender Male Female 49 41 49 36 39 46 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.05 level of significance

Explanation / Answer

we will take help of minitab software for solving this problem

a) H0: p1=p2=p3=p4

Ha: not H0(atleast one inequality)

p-value=0.678

conclusion accept H0

b)no there is insignificant effect of gender

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