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yezz
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The resident of town X participated in a survey to determin 15 Oct 2006, 09:58
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The resident of town X participated in a survey to determin the number of hours per worker each resident spent watching television. The distribution of the results of the survey had a mean of 21 hours and a standard deviation of 6 hours. The number of hours that Pat, a resident of town X watched television last week was between 1 and 2 standard deviation below the mean. Which of the following could be the number of hours that Pat watched television last week?

30, 20, 18, 12 or 6 hours???

mean = 21 , sd = 6

one standard deviation below the mean = 21-6 = 15

two standard deviations = 21-12 = 9

9<12<15 my answer is 12 hours



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The resident of town X participated in a survey to determin 15 Oct 2006, 10:21
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Good job Yezz!!

Yeah...forgot about the Standard deviation...
Thanks a lot!!!



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