MINITAB assignment help

Fzneg5
timer Asked: Jun 16th, 2018

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HW Design of Experiment #1 1. What are the effects of the material type and temperature in the life of a battery? 2. Is there any material selection that maximizes its life? #2 • Response: the performance of a chemical process is studied. • It is thought that the two most important variables: pressure and temperature. Three levels of each factor are selected and performed a factorial experiment with two replicates. Performance data are: Pressure Temperature 200 215 230 150 90.4 90.7 90.2 90.2 90.6 90.4 90.1 90.5 89.9 90.3 90.6 90.1 90.5 90.8 90.4 90.7 90.9 90.1 160 170 #3 • The percentage of the concentration of hardwood pulp in gross, pressure, and cooking time of pulp are examined for their effects on paper strength. Three levels of concentration of hardwood are selected. Three levels of pressure and two cooking times. Carry out a factorial experiment with two replicates. Percentage concentration 2 4 8 400 196.6 196 198.5 197.2 197.5 196.6 Time 3 hours Time 4 hours Pressure 500 197.7 196 196 196.9 195.6 196.2 Pressure 500 199.6 200.4 198.7 198 197 197.8 650 199.8 199.4 198.4 197.6 197.4 198.1 400 198.4 198.6 197.5 198.1 197.6 198.4 650 200.6 200.9 199.6 199 198.5 199.8 #4 • A machine is used to make grooves on a printed circuit board. The vibration level at the surface of the card when the slots are made is considered a major source of dimensional variation of the grooves. Two factors are thought to influence the vibration: the size of the grooves (A) and the cutting speed (B). two sizes of grooves (1/16 and 1/8 inch) and two speeds (40 and 90 rpm) are selected, and four grooves are made with each card set of conditions. Variable vibration response is measured as the resultant vector of three accelerometers (x, y, z) on each test card. A + + B + + Treatment [1] a B ab I 18.2 27.2 15.9 41 Replication II III 18.9 12.9 24 22.4 14.5 15.1 43.9 36.3 IV 14.4 22.5 14.2 39.9 Example #5 • Four factors, each with two levels were studied in a study of the performance of a process: time (A), the concentration (B), pressure (C) and the temperature (D). one replicate was run a design 2⁴ and data obtained are shown in the following table: Yield Run order Real order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5 9 8 13 3 7 14 1 6 11 2 15 4 16 10 12 A + + + + + + + + B + + + + + + + + C + + + + + + + + D + + + + + + + + Factor Levels lbs. Low 12 18 13 16 17 15 20 15 10 25 13 24 19 21 17 23 A(h) B(%) C(psi) D(ᴼC) High 2.5 14 60 225 3 18 80 250 Thank you!!!
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