Question

During its manufacture, a product is subjected to four different tests, each giving a score of 200 to 800. An efficiency expert claims the fourth test to be unnecessary since its results can be predicted based on the first three. The following Minitab printout is an analysis of scores received by a sample of 12 units subjected to all four tests.
a. Interpret the multiple regression equation.
b. An individual unit from the assembly area receives ratings of 350, 400, and 600 on the first three tests. Using the estimation equation in the printout, what is the unit’s estimated score on test 4?


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  • CreatedSeptember 08, 2015
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