Biology- Scientific Method

An experimenter sets out to find out how many hours of sleep a dog needs in order to catch the highest number of balls without a bounce. To test this the experimenter uses 5 dogs in the experiment and allows each dog to sleep a predetermined amount of time: dog 1: 4 hrs, dog 2: 6 hrs, dog 3: 8 hours, dog 4: 12 hours, dog 5: 16 hours. If a dog sleeps of its own free, will it is normal for a dog to sleep for 8 hrs. After having the dogs establish these sleep patterns the experimenter through each dog 20 balls and recorded the number each one caught. 

Dog1 5% Caught 
Dog 2 15% caught 
Dog3 50% caught 
Dog 4 97% caught 
Dog5 2% caught 

What was the control group? 
Write the conclusion for this experiment 
Why do you think that dog #5 performed so poorly? How could you test this theory?

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asked by Emily

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