A video arcade owner wondered if boys or girls spend more time playing the games once they
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A video arcade owner wondered if boys or girls spend more time playing the games once they enter the arcade. He recorded the playing time for boys and girls selected at random. No more than one person was selected from among a group of friends, to minimize the effect of group behavior on individuals. Now let’s suppose that he did not record playing times for equal numbers of boys and girls. For illustrative purposes, we have added 4 female cases to the previous data. Here are the times, in minutes, for 10 boys and 14 girls. Conduct a two-tailed t test at the .01 α level. Do boys or girls spend significantly more time playing the games once they enter the arcade?
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Boys M = 135 SS= 1,459 n = 10 Girls M = 127 SS = 1,897 n = 14
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