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Professor McSpell Designed an Experiment to Test Her Hypothesis That

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Professor McSpell designed an experiment to test her hypothesis that exercise will increase spelling ability.She divided children into three groups and had one group do 10 minutes of exercises,one group do 30 minutes of exercises,and the third group do no exercise.She then tested all three groups of children to see how many words they could spell correctly on a spelling test.In this experiment,the scores on the spelling test serve as the


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