Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 09 Jan 2018 My Price 10.00

Brain and Behavior Evolution

Feeding habits of fish. Refer to the Brain and Behavior Evolution (Apr. 2000) study of the feeding behavior of black bream fish, presented in Exercise 2.150 (p. 89). Recall that the zoologists recorded the number of aggressive strikes of two black bream feeding at the bottom of an aquarium in the 10-minute period following the addition of food. The following table lists the weekly number of strikes and age of the fish (in days). These data are saved in the BLACKBREAM file.

a. Find Spearman’s correlation coefficient relating number of strikes ( y ) to age of fish ( x ).

b. Conduct a nonparametric test to determine whether number of strikes ( y ) and age ( x ) are negatively correlated. Test using a = .01.

Exercise 2.150

Feeding behavior of fish. Zoologists at the University of Western Australia conducted a study of the feeding behavior of black bream (a type of fish) spawned in aquariums. ( Brain, Behavior and Evolution , April 2000). In one experiment, the zoologists recorded the number of aggressive strikes of two black bream feeding at the bottom of the aquarium in the 10-minute period following the addition of food. The number of strikes and age of the fish (in days) were recorded approximately each week for nine weeks, as shown in the table above. The data are saved in the BLACKBREAM file.

a. Construct a scatterplot of the data, with number of strikes on the y -axis and age of the fish on the x -axis.

b. Examine the scatterplot of part a. Do you detect a trend?

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Maurice Tutor
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Status NEW Posted 09 Jan 2018 09:01 PM My Price 10.00

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