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A sample of n = 500 individuals is asked how many hours they typically spend using a computer in a week. The mean response is x‾= 8.3 hours, and the standard deviation is s = 7.2 hours.

Find values for the interval x‾ ± 2s, and explain why the result is evidence that the distribution of weekly hours spent using the computer is not bell-shaped.

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Category:- Statistics and Probability
Reference No.:- M92209461

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