Have attitudes towards investing in the stock market changed in recent years as the growth of stocks has slowed? In 1995, a random sample of 100 adults that had investments in the stock market found that only 20 said they were investing for the long haul rather than to become rich or make quick profits. A random sample of 100 adults that had investments in the stock market in 2002 found that 36 were investing for the long haul rather than to become rich or make quick profits. Let P1 and P2 be the actual proportion of all adults with investments in the stock market in 1995 and in 2002, respectively, that were investing for the long haul.A 99% confidence interval for P1-P2 is:a) -.160 +or-0.062b) -.160 +or-0.122c) -.160 +or-0.161d) .160 +or-0.062