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in a National survey it was found that means being an average less than 30 minutes...

in a National survey it was found that means being an average less than 30 minutes per day on weekends and holidays play sports random sample of 25 nine resulted in a mean of 28.4 minutes playing sports with a standard deviation of 2.5 minutes at 0.10 test the claim that means been on average less than 30 minutes per day on weekends and holidays playing sports send the population is normally distributed
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