A process engineer is trying to improve the life of a cutting tool. He has run a 2³ experimentusing cutting speed (A), metal hardness (B), and cutting angle (C) as the factors. The datafrom two replicates are shown in Table 13E.2.(1) Calculate the main effects of A, B, C, and all interaction effects.(2) Do any of the three factors affect tool life? Make an ANOVA table and draw conclusionfrom the F-values with α = 0.05.(3) What combination of factor levels produces the longest tool life?■ TABLE 13E.2Data for the Experiment in Exercise 13.2.ReplicateRunIII(1)221311a325435b354348ab552472с440453སྣ་ ནྟི406377bc605500abc392419

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Answered: A process engineer is trying to improve…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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20 Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 900 68 352 34.64 855 58.85 695 60.65 412 38.84 310 20.7 600 45 308 34.56 781 56.67 881 59.67 A student calculates a linear modely=_____ x +_____ . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 450.Cost = $________
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In a completely randomized experimental design involving three assembly methods, 30 employees were randomly selected and 10 were assigned to each of the three methods. The time required to complete the task was recorded. The following information is provided: MSTR = 45.89 and MSE = 6.27. What is the critical value of F if we want to determine whether the means of the three populations are equal at the 5% level of significance?
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The marketing research company comScore, Inc. reported that 65% of online searches in March 2010 used Google as the search engine. A network administrator wants to determine whether the percentage of searches that use Google is different in his company. He samples 400 searches and finds that 295 of them use Google. Can he conclude that the percentage of searches that use Google in his company differs from 65%? Use the α= 0.05 level of significance.

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