Suppose the mean number of hours of television watched by Americans is 25.4 hours/week, with a standard deviation of 6.

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Suppose the mean number of hours of television watched by Americans is 25.4 hours/week, with a standard deviation of 6.1. Let us also suppose that the distribution is nearly normal in shape so that we can use the normal distrubtion as a model.

what proportion of people watch more than 25.4 hours/week?

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Suppose the mean number of hours of television watched by Americans is 25.4 hours/week, with a standard deviation of 6.

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