Quiz

A researcher wants to see if men who eat in fast food restaurants more than twice a week are heavier than the general population of men.  According to the CDC, the average American adult male weighs 191 pounds.  85 randomly selected men who eat in fast food restaurants more than twice per week were weighed.  They averaged 198 pounds with a standard deviation of 20 pounds.  Work out the details of the hypothesis test with a level of significance of 0.05 and give your result using a complete sentence in the context of the study.