A Prevention magazine article reported on a poll of 1257 adults. The article noted that among those polled, 27% smoke, and 82% of those who smoke have tried to stop at least once. How many of the surveyed people are smokers who have tried to stop at least once? At the 0.05 significance level, test the claim that less than 25% of adults are smokers who have tried to stop at least once.
Test the given claim, and draw the appropriate graph. Use the traditional method or the P-value method of testing hypotheses (or your instructor may specify which method to use with assigned exercises). Assume that all samples have been randomly selected.