In the July 29, 2001, issue of The Journal News (Hamilton, Ohio) Lynn Elber of the Associated Press reported?
on a study conducted by the Kaiser Family foundation regarding parents' use of television set V-chips for controlling their children's TV viewing. The study asked parents who own TV's ...
on a study conducted by the Kaiser Family foundation regarding parents' use of television set V-chips for controlling their children's TV viewing. The study asked parents who own TV's equppped with V-chips whether they use the devices to block programs with objectionable content. a suppose that we wish to have the study results to justify the clame that fewer than 20 percent of parents who own TV sets with V-chips use the devices. The study actally found that 17 percent of the parents polled used their V-chips. If the poll surve;yed 1,000 parents, and if for the ske of argument we assume the 20 percent of parents who own V-chips actually use the devices (that is p= .2) calculate the probability of observing a sample proportion of .17 or less. That is calculate P(p is less than .17)