Listen sir please help me stepwise with explanation in each wherever required,like is guaranteed to the answer!! the current no smoking regulation in office buildings require workers who smoke to take breaks and leave the building in order to satisfy thier habits. A study indicates that such workers average 32 minutes per day taking a smoke break. The standard deviation is 8 minutes. to help reduce the average break, rooms with powerful exhausts were installed in the buildings. To see whether these
Listen sir please help me stepwise with explanation in each wherever required,like is guaranteed to the answer!!
the current no smoking regulation in office buildings require workers who smoke to take breaks and leave the building in order to satisfy thier habits. A study indicates that such workers average 32 minutes per day taking a smoke break. The standard deviation is 8 minutes. to help reduce the average break, rooms with powerful exhausts were installed in the buildings. To see whether these rooms serve thier designed purpose a random sample of 110 smokers was taken. The total amount of time away from their desks was measured for 1 day. test to determine whether there has been a decrease in the mean time away from their desks.
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