Chapter 13 Assignment X 6. eBook Video 7 To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, the Jacobs Chemical 8 Company obtained the following data on the time (in minutes) needed to mix the material. 9 Manufacturer 10 2 3 11. 17 25 16 23 23 15 12. 21 28 19 13 19 24 18 14 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a = .05. Compute the values below (to 2 decimals, if necessary). Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment Mean Squares, Error X Calculate the value of the test statistic (to 2 decimals). X The p-value is less than .01 What is your conclusion