The data that follow are the ratings for six smart phones from each of the four...

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The data that follow are the ratings for six smart phones from each of the four suppliers, three of which cost $650 or more and three of which cost less than $650. The ratings have a maximum value of 100 and a minimum of 0. Supplier A B C D 77 74 72 75 Cost $650 75 69 71 73 70 68 71 73 70 69 71 72 Cost < $650 68 64 71 71 65 62 71 72 (a) What type of experiment was used to evaluate these smart phones? The design is a 2 4 factorial experiment with 3 replications. What are the factors (independent variables)? How many levels of each factor are used in the experiment? (Enter 0 if the item listed is not a factor.) smart phones 0 levels costs 2 levels suppliers 4 levels ratings 0 levels (b) Input the data in R, and run an analysis of variance to produce the table appropriate for this design, specifying the sources of variation, degrees of freedom, sums of squares, mean squares, and the appropriate values of F used in testing. (Round your SS values, MS values, and your F values to two decimal places.) Source df SS Supplier 3 Cost 1 Interaction 3 Error 16 Total 23 277.83 MS F The data that follow are the ratings for six smart phones from each of the four suppliers, three of which cost $650 or more and three of which cost less than $650. The ratings have a maximum value of 100 and a minimum of 0. Supplier A B C D 77 74 72 75 Cost $650 75 69 71 73 70 68 71 73 70 69 71 72 Cost < $650 68 64 71 71 65 62 71 72 (a) What type of experiment was used to evaluate these smart phones? The design is a 2 4 factorial experiment with 3 replications. What are the factors (independent variables)? How many levels of each factor are used in the experiment? (Enter 0 if the item listed is not a factor.) smart phones 0 levels costs 2 levels suppliers 4 levels ratings 0 levels (b) Input the data in R, and run an analysis of variance to produce the table appropriate for this design, specifying the sources of variation, degrees of freedom, sums of squares, mean squares, and the appropriate values of F used in testing. (Round your SS values, MS values, and your F values to two decimal places.) Source df SS Supplier 3 Cost 1 Interaction 3 Error 16 Total 23 277.83 MS F