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spend an average of 29 minutes per day on weekends
and holidays exercising and playing sports. They spend
an average of 23 minutes per day reading. A random
sample of 25 men resulted in a mean of 35 minutes
exercising with a standard deviation of 6.9 minutes and
an average of 20.5 minutes reading with s 7.2 minutes.
At a 0.05 for both, is there sufficient evidence that
these two results differ from the national means?

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