Del 0 A machine shop has three machines used in precision grinding of cam roller

Question

Del 0 A machine shop has three machines used in precision grinding of cam rollers. Three machinists are rollers on the machines. In an experimen·to determine whether there are differences in output their operators, each opecrator worked on each machine on four different production of parts that nictpecification, with the iper the following sums of squares were observed: SSA employed o gritd the ays. The outcome measured was the ator as the rena effect and the machinc asthe column #3147 U, SSF3m 136.5. SSAB 41 1 .7. SE-15220, a. How many degrees of freedom are there for the operator effect? b. How many degrees of freedom are there for the machine effect? c. How many degrees of freedom are there for interactions? d. How many degrees of freedom are there for error? e. Construct an ANOVA table. You may give ranges for the Pvalues f. Is the additive model plausible? Provide the valuc of the test statistic and the P-value 3. Is it plausible that the main effects of operator are all cqual to 0? Provide the value of the test statistic and the P-value. main effects of machine are all equal to O? Provide the value of the test statistic and the P-value

Explanation / Answer

df SS MSE F p-value operator 1 3147 3147 37.21813 9.17636E-06 machine 2 136.5 68.25 0.807162 0.461628474 interaction 2 411.7 205.85 2.434494 0.115939119 error 18 1522 84.55556 total 23

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