Question

Please answer these 2 questions !

Dementia is the loss of infellectual and social abilities severe enough to interfere with judgment behavior and daily functioning. Alzheimer's disease is the most common type of dementia. In an article, two authors explored the experience and struggles of people diagnosed with dementia and their families. The ages of a simple random sample of 15 people with early-onset dementia have a mean of 53.4 years and a standard deviation of 5.4 years, Complete parts (a) through (c) below. a. Construct the graph shown below. Q X-38 X-2 2-3 2 X-3s X-2s - x+2s = X + 35 - X-S 5 . (Type intogors or decimals. Do not round) ary

Answer 1

In first image given that, The age of simple. randas sarople of 15 people with each - onsd. deeemile have a mean edo 52.4 years and Standard deviations a Construct the graph shown. 153.4 year 158.2 X-5- 53.4 - 5.4 a 7.5 = 48 (48.0 Xtsa 53.4+ 5.4 X-25= 53... - 2x 5:4 53.4 10.8 42.6 X-25 142.6). T+2S = 53.4+ 2x 5.4 53,4+ 10.8 To 4.2 7-350 53.4-345.4 53.4 -14.2 7-35 = 137.2). 7+2s. X+ 35 = 53.47 24 5.4 53.47 16.2 169.6 7+35 58.8 34.2 X-35 - 7-25 = X+s 7+25 X+35 = 64.2 42.6 7-s 48.0 +5 7-25 tab X-5 68 X 586 735 696 str. 2 372

DATE 2 Is see and image given that The student-to-faculty ratios of 88 fifth grade classes sampled have mean Z od 14.75 and Standard deviation sa 1.96 cy x-s . Construct the graph shown belown. X= 14.75 L 1475 - 1996 12.79 X-2s0 14.75 r.g6x2 = 14.75- 3.92 = 10.83 X-35 14.75 - 3X1.96 14. - 588 = 2.8 X+S 14.75 +1.96 - 16- X+25 1.75 +2 1.96 K4.75 +3.92= 18.67 X +35= 14.75 + 3 * 1.96 14.75+ 5.88= 20.63 X-35= 18.87 10.83 16.71 18.57) -23 a X-s X+ 3 = Xt25 X+35 = 8 T12.79 120.63 14.75 X-33 X-23 Xs x+3 7+25 14.75 16.1 18.67 X+35 20.63 8.87 10.83 12.79 Х