Question 4 3 pts A random sample of 35 students is selected from a population from a large university. The data collected included the number of hours each student spent in the university's library. Let L represent the continuous random variable representing the number of hours each student spent in the university's library. The statistic 5L might be used as an estimator forwhich of the following? Question 5 3 pts A national health organization wams that 30% of middle school students nationwide have been intoxicated. Let p represent the population proportion of all U.5. middle school students who have been intoxicated. For the sampling distribution of the sample proportion for samples of size 100, pp\" = 0.30. Which of the following is the best interpretation of p3; = 0.30? O For all samples of size 100, the mean of all possible sample proportions of middle school students who have been intoxicated is 0.30. O For each sample of size 100, the proportion of middle school studenls who have been intoxicated is 0.30. O For all samples of size 100, the standard deviation of all possible sample proportions of middle school students who have been intoxicated is 0.30. O For a randomly selected middle school student, the probability that this student has been intoxicated is (1.30. Question 6 3 pts An article from Newsweek states. \"53% of America's college graduates are avid readers of mystery novels.\" Suppose that a sample of 225 randomly selected college graduates are asked whether they read mystery novels. Can you use the normal approximation for the sampling distribution? Why orwhy not? O No because the sample size is not less than 10% of the population size. 9 Yes because (225)(0.53)=119.25 and (225)(0.47)=105.?51 Since both of the values are at least 10, we can use a normal approximation for the sampling distribution. 0 No, because 1! w = 0.03 and this value is less than 10. 0 Yes, because there are more than (10H225}=2250 college students in the U3. Question 7 3 pts With landlls quickly reaching their capacities. recycling household trash has assumed increased importance. A state legislator believes that a greater proportion of residents in the southem part of her state favor a mandatory recycling bill. A random sample of 932 southern residents was taken and a random sample of 952 residents in the northern region was also taken. Let :58 be the sample proportion of residents from the southern part of the state that favors the bill and n be the sample proportion of residents from the northern part of the state that favors the bill. What is the mean of the sampling distribution ofs - n? 0 g _n 0 P8 _ Pr: 0 234932) +13nl952) 0 VP: '1'\" Question 8 According to the CDC, 223% of adult males [65 or over) suffer from some form of arthritis and 24.8% of adult females (65 or over] suffer from some form of al A random sample of 1012 selected American men (age 65 or older] and a random sample of 1062 American women [age 65 or older) was selected. Let M represent the sample proportion of men who suffer from some form of arthritis and p F represent the sample proportion of women who suffer from so of arthritis. Can we use the standard deviation formula for the standard deviation of the sampling distribution of the difference in sample proportions 15M g? 0 Yes, because there were more than 10 males who suffer from arthritis in the sample and more than '10 females who suffer from arthritis in the sample. C) No, because we can not be sure we will have 10 successes and 10 failures in each sample. C) No, because the sample sizes are too large. 0 Yes, because we can reasonably state there are more than 10,120 men 65 or older and 10,620 women 65 or older in the U3