Question

Question 20 4 points Sve Answer An insurance analyst working for a car insurance company would like to determine the proportion of accident claims covered by the company. A random sample of 240 claims shows that the insurance company covered 90 accident claims while 150 claims were not covered. Fine the interval that contains 95.42% of the sample proportion of an accident claims 134.54% 40.4794 131.25% 43.75%) 156.25% 66754 159 30% 65.47

Answer 1

solution : Griven The Random sample (22) = 240 The insurance company claims 90 accidents i-e. X= 90 Then ²² x n go 240 0.375 I-Ê = 1-01375 = 0.625 Find the 95.44 % confidence interval. I-d= 0.9544 L = 0.0456 - 2/2 = 0.0228 confidence interval is TE(1-Ê Ê - 242 Ê + Z12 6 (1-Ê YL n 0.375 X 0.625 =) (0-345- 375 - 20.0228 0 35+ 2002 28 240 5.375X01625 240 ī (0.375 2X0.03125 0,375+ 2X0.03 12 (0.375 0.0625 0.375 +0.0625) (0.3125, 0.4375) (31.25". 43.759.) Ang