Question 5 (7 points) Scores on the SAT test have a mean of 1500 and a standard deviation of 300, while the same characteristics for the ACT test are 25 and 5 respectively. Mark got 1500 for the SAT test and 35 for the ACT test. In which test did Mark do better? ACT SAT Question 6 (5 points) Which sample do you think has a smaller standard deviation: the incomes of a simple random sample of 1000 adults selected from the general population, or incomes of a simple random sample of 1000 workers in Mcdonald's ? Explain your answer in a sentence. Mcdonald's, because salaries there vary much. General, because the salary variation is large there. Mcdonald's, because salaries there do not vary much. General, because salaries in general vary much