DRES 2 2 3 4 Do people who work long hours have more trouble sleeping? This question was examined in the paper "Long Working Hours and Sleep Disturbances: The Whitehall i Prospective Cohort Study (Sleep (2009) 737-745). The data in the accompanying table are from two independently selected samples of British civil service workers, all of whom were employed full-time and worked at least 35 hours per week. The authors of the paper believed that these samples were representative of full-time British civil service workers who work 35 to 40 hours per week and of British civil service workers who work more than 40 hours per week Work 40+ hours/week Work 35-40 hours/week n 1501 958 Number who usually get less than 7 hours of sleep a night 750 407 A. (2 point] What population characteristic? B.11 point] What type of test is appropriate for this problem? A. Zinterval B.Tinterval C1-PropZint D2-5ampZInterval E2-SampTinterval F2-PropZint C13 points) Assuming that this sample is random/representative of the population, what other assumptions need to be true before we can create a confidence interval? Show all justification D.13 points] Construct a 95% confidence interval for the population characteristic. (Round your answers to three decimal places) E3 points Draw a conclusion about the 95% confidence interval explaining what the interval means in the context of the problem F.12 points) is 0 in the confidence interval? What does that mean in the context of this problem?