Assignment 9(On-campus: Due 5pm Tuesday Dec. 6. Oﬀ-campus: Due midnight Thursday, Dec. 8.)1. The surface ﬁnish of metal parts made on four machines is being studied. An experiment isconducted in which each machine is run by three diﬀerent operators and two specimens fromeach operator are collected and tested. Because of the location of the machines, diﬀerentoperators are used on each machine, and the operators are chosen at random. The dataare shown in the following table. Analyze the data (i.e. estimate and test the parametersincluding ﬁxed eﬀects and variance components) and draw conclusions.Machine1Machine2Machine3Machine4————–————————————–Operator1237994469285768853463640626274579979687556575356472. An experiment is designed to study pigment dispersion in paint. Four diﬀerent mixes of
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Nontotient, Erdős–Woods number, metal parts, application methods