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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 Compant obtained the following data on the time (in minutes) needed to mix the material. 1 17 23 21 19 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use α = 0.05. Compute the values below (to 2 decimals, if necessary). * X X × Mean Squares, Error Calculate the value of the test statistic (to 2 decimals). Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment Manufacturer The p-value is less than 0.01 What is your conclusion? 2 33 31 36 32 3 22 21 25 24 Conclude the mean time needed to mix a batch of material is not the same for all manufacturers b. At the a = 0.05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers 1 and 3. Calculate Fisher's LSD Value (to 2 decimals).

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 Compant obtained the following data on the time (in minutes) needed to mix the material. 1 17 23 21 19 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use α = 0.05. Compute the values below (to 2 decimals, if necessary). * X X × Mean Squares, Error Calculate the value of the test statistic (to 2 decimals). Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment Manufacturer The p-value is less than 0.01 What is your conclusion? 2 33 31 36 32 3 22 21 25 24 Conclude the mean time needed to mix a batch of material is not the same for all manufacturers b. At the a = 0.05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers 1 and 3. Calculate Fisher's LSD Value (to 2 decimals).

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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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 Company obtained the following data on the time (in minutes) needed to mix the material. Compute the values below (to 2 decimals, if necessary). 2 33 31 36 32 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a = 0.05. Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment × Mean Squares, Error Calculate the value of the test statistic (to 2 decimals). The p-value is less than 0.01 What is your conclusion? Manufacturer 1 17 23 21 19 M N N N N What conclusion can you draw after carrying out this test? Cannot conclude there is a difference in the mean time for these manufacturers 3 22 21 25 24 Conclude the mean time needed to mix a batch of material is not the same for all manufacturers b. At the a = 0.05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers 1 and 3. Calculate Fisher's LSD Value (to 2 decimals).
Transcribed Image Text: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 Company obtained the following data on the time (in minutes) needed to mix the material. Compute the values below (to 2 decimals, if necessary). 2 33 31 36 32 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a = 0.05. Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment × Mean Squares, Error Calculate the value of the test statistic (to 2 decimals). The p-value is less than 0.01 What is your conclusion? Manufacturer 1 17 23 21 19 M N N N N What conclusion can you draw after carrying out this test? Cannot conclude there is a difference in the mean time for these manufacturers 3 22 21 25 24 Conclude the mean time needed to mix a batch of material is not the same for all manufacturers b. At the a = 0.05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers 1 and 3. Calculate Fisher's LSD Value (to 2 decimals).
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