A survey of 300 senior citizens found that 201 of them were drivers. A second survey of 300 17-20 year olds found that 193 of them were drivers. Using a significance level of 0.05, determine whether there is any difference in the proportion of drivers in the two groups. A new diet company advertises that its program members will lose 6 Kgs in two weeks with a standard deviation of 1.2 Kgs. A random sample of 30 new members revealed a mean loss of 5 Kgs. At a 0.05 level of significance, can we conclude new members will lose less than 6 Kgs? A) Write the null and alternative hypotheses. B) Will the hypothesis test be one-tailed or two-tailed? Explain. C) Perform a hypothesis test using the classical method.