Alzheimer's disease is a progressive disease of the brain. An article published in 2006 was critical of the methodology used in studies ofAlzheimer's treatments conducted prior to 2006. In a random sample ofn : 30 Alzheimer's studies, the quality ofthe methodology was measured on the Wong scale with scores ranging from 9 (low quality) to 27 (high quality) for each study. The data is provided below. Copy and paste the following data into your RIRStudio console: x=c(12,26,1 0,20,17,22,1 6,12,16,21 ,1 8,23,25,22.20,1 7,15,15,15.1 3,10,11 ,19,13,13.18,27,19,1 7,17); (a1 Find a 87% condence interval for the mean quality of studies on the treatment ofAlzheimer's disease. Assume that the data is normally distributed. 555 g ,u. g 555 use as many digits as R gives you (b) Correctly complete the interpretation of the 87% condence interval you computed in (a) : ? v , the mean quality of ? v is somewhere between :55 and =55 on the Wong scale