Question

Find the value of XP values that separate the middle 80 % from the rest of the distribution for 9 degrees of freedom. BIVA -A- IE # 3 1 1 , VX + CVT 12pt Paragraph

Answer 1

Given that Degree of freedom = df = 9 Now we have to find critical values for middle 80%. Step (1): 80 B1- 1-0.80 = 0.20 100 0.20 = 0.10 N

Step (2): x2 Right = x2 step1 value,df = x2 = 0.10,9 = 123.225 From table, for df = 9 and x² 0.10, X² Right 14.684 Step (3): xLeft = x? 1-step1 value.df = x2 1-0.10,9 = x2 0.9,9 = 4.168 From table, for df = 9 and xạ 0.90, X2 Left 4.168 :: x2 Left = 4.168 x2 14.684 Right

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