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252samp2ans

# 252samp2ans - BA 252 Dr Campbell Samples II Answers 1 a R =...

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BA 252 Dr. Campbell Samples II - Answers 1. a) R = 1.19/5 = 0.238 = 24.9645 UCL = 24.9645 + 0.729(0.238) = 25.138 LCL = 24.9645 – 0.729(0.238) = 24.791 UCL R = 2.282(0.238) = 0.543 LCL R = 0(0.238) = 0 b) All samples in control for -chart. Sample 2 out of control for R-chart. 2. Option 1: 700,000 + 3Q Option 2: 400,000 + 5Q Option 3: 3a) 300,000 + 7Q if Q 80000 3b) 460,000 + 5Q if Q>80000 The cost for Option 3b is from 300,000+7(80,000)+5(Q-80,000) = 460,000 + 5Q a) 700,000 + 3Q = 9Q Q = 116,666.67 per year b) 400,000 + 5Q = 9Q Q = 100,000 per year c) 300,000 + 7Q = 9Q Q = 150,000 per year Not in Range 460,000 + 5Q = 9Q Q = 115,000 per year In Range d) 10Q -(400,000 + 5Q) = 12,000 Q = 82,400 per year e) 10Q - (300,000 + 7Q) = 12,000 Q = 104,000 per year Not in Range 10Q - (460,000 + 5Q) = 12,000 Q = 94,400 per year In Range f) 150,000p - (400,000 + 5 150,000) = 80,000 p = \$8.20/CD g) 150,000p - (460,000 + 5 150,000) = 80,000 p = \$8.60/CD h) Option 1 < Option 2 700,000 + 3Q < 400,000 + 5Q Q > 150,000 per year Option 1 < Option 3a 700,000 + 3Q < 300,000 + 7Q Q > 100,000 per year Not in Range Option 1 < Option 3b 700,000 + 3Q < 460,000 + 5Q Q > 120,000 per year OK So, Option 1 is best for Q > 150,000 per year and Q > 120,000 per year, which means Option 1 is best for Q > 150,000 per year. Thus, either Option 2 or Option 3 is best for Q < 150,000 per year. Option 2 < Option 3a 400,000 + 5Q < 300,000 + 7Q Q > 50,000 per year Option 2 < Option 3b 400,000 + 5Q < 460,000 + 5Q always true!

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252samp2ans - BA 252 Dr Campbell Samples II Answers 1 a R =...

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