study conducted few years ago claims adult males spend average 9 hours week watching
A study conducted a few years ago claims that adult males spend an average of 9 hours a week watching sports on television. A recent sample of 100 adult males showed that the mean time they spend per week watching sports on television is 7.50 hours with a standard deviation of 2.8 hours.
Test at the 1% significance level if currently, all adult males spend less than 9 hours per
week watching sports on television.