Question 26 (4 points) Past observations suggest that patients who underwent carotid endarterectomy (an operation that removes blockage from the inside of a carotid artery to restore blood flow to the brain) take about 3 to 4 weeks before they can resume their usual daily routine (Source: Average carotid artery surgery recovery time. (2019, November 20). Retrieved from http://brvsc.cam/a verage-caratid-arterysurgeryrecoverytime/). Assuming that the recovery time follows a normal distribution with an average of 3.5 weeks and a standard deviation of 0.82 weeks, what is the probability that a random patient who was subjected to this medical procedure will recover in between 2 and 4 weeks? 0 A) 70% Q B) 50% O C) 30% O D) 97% Q E) 95% A study was conducted to verify whether drinking coffee lowers the risk of post- menopausal women having endometrial cancer. There were 45,696 females taking part in the study. The average amount of coffee consumed per day, as well as presence of endometrial cancer, were recorded upon entry to the study for all participants and three years after last follow-up. Over the course of the study, about 12 years, 452 of the participants developed the disease of endometrial cancer. At the end of the study researchers concluded that there is no significant association between coffee consumption and the risk of post-menopausal women developing O endometrial cancer. [Source: Giri A, Sturgeon SR, Luisi N, Bertone-Johnson E, Balasubramanian R, Reeves KW. Caffeinated coffee, O decaffeinated coffee and endometrial cancer risk: a study among US postmenopausal women. Nutrients. 2011 Nov;3(11):937-50. doi: 10.3390u3110937. Epub 2011 Nov 2. PMID: 22254087; PMCID: PMC3257719.] What kind of study this is? O O A) Prospective study (B) Double-blinded randomized controlled experiment O O C) Retrospective study O D) Invalid observation study (E) Single-blinded randomized controlled experiment