Life expectancy for smokers is at least 10 years shorter than that of non-smokers. Quitting smoking before the age of 40 reduces the risk of dying from smoking-related disease by about 90%.
It would be 12 acres I just did the test!!bdjdgfjrjrurbehehe
Explanation:
Think about an interval that covers the entire spread of the data... you can be 100% confident that it contains the true mean. If you have a very narrow range (e.g. 115.1 mph to 115.2 ...
