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. Manufacturer 3. 20 34 17 26 32 16 24 37 20 22 33 19 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a0.05. Compute the values below (to 2 decimals, f necessary). 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? Conclude tthe mean time needed to mix a batch of material is net 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).

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
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O 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.
Manufacturer
20
34
17
26
32
16
24
37
20
22
33
19
e a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a0.05.
Compute the values below (to 2 decimals, if necessary).
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?
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:O 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. Manufacturer 20 34 17 26 32 16 24 37 20 22 33 19 e a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a0.05. Compute the values below (to 2 decimals, if necessary). 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? 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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