Unformatted text preview: Rep. 1 Rep. 2 Ignitor Main Charge Booster Delay Delay 1 1 powder 10.70 9.82 2 1 powder 18.42 18.62 1 2 powder 15.04 16.02 2 2 powder 22.94 31.22 1 1 pellet 10.02 10.36 2 1 pellet 22.80 25.14 1 2 pellet 27.26 21.42 2 2 pellet 32.92 21.38 (a) Draw a cube and attach the sample means at the corners. (b) Estimate the the main eFects, the three two factor interactions and the three factor interaction. Base your calculations on your ±gure in Part(a). (c) Calculate 95 % con±dence intervals for your estimates in Part (b). (d) Write the design with seven columns of ± 1 and calculate the estimated eFects using this column and the column of means. 3 Check your answers to problems 1. and 2. Comment on any diFerences. How do the sums of squares for any factor compare with estimated eFect in each case? 1...
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 Fall '08
 peter
 Statistics, main charge, pellet pellet pellet, powder powder powder

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