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Are different species of mosquitoes attracted differently to the two sexes? A st

ID: 3156118 • Letter: A

Question

Are different species of mosquitoes attracted differently to the two sexes? A study was conducted where three closely related species of mosquitoes were presented with an arm from a male or a female, and the selection was recorded. Here is the two-way table of counts.

A) Mosquitoes prefer female arms.

B)The proportion of mosquitoes in the three species is equal.

C)The proportion of mosquitoes that prefer female arms is higher than the proportion that prefer male arms.

D)There is no association between the species of mosquitoes and the arm (sex) selected.

Female Male Species A 248 66 Species B 514 105 Species C 351 225

Explanation / Answer

here the null hypothesis will be that there is no association between the species of the mosquitoes and the arm selected as the data is given for 3 and we need to have the interelation between them. therefore OPtion D is correct

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