Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random sample of four seals from each machine is used to determine whether the mean tensile strength varies from machine to machine. The following are the tensile-strength measurements in kilograms per square centimeter ×10-1: Machine 2 3 4 5

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Six different machines are being considered for use in manufacturing rubber
seals. The machines are being compared with respect to tensile strength of
the product. A random sample of four seals from each machine is used to
determine whether the mean tensile strength varies from machine to machine.
The following are the tensile-strength measurements in kilograms per square
centimeter x101: Machine
1
2
3
4
6
17.5
16.4
20.3
14.6
17.5
18.3
16.9
19.2
15.7
16.7
19.2
16.2
15.8
17.7
17.8
20.8
16.2
17.5
18.6 15.4
18.9
18.9
20.5 20.1
Perform the analysis of variance at the 0.05 level of significance and indicate
whether or not the mean tensile strengths differ significantly for the six
machines.
Transcribed Image Text:Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random sample of four seals from each machine is used to determine whether the mean tensile strength varies from machine to machine. The following are the tensile-strength measurements in kilograms per square centimeter x101: Machine 1 2 3 4 6 17.5 16.4 20.3 14.6 17.5 18.3 16.9 19.2 15.7 16.7 19.2 16.2 15.8 17.7 17.8 20.8 16.2 17.5 18.6 15.4 18.9 18.9 20.5 20.1 Perform the analysis of variance at the 0.05 level of significance and indicate whether or not the mean tensile strengths differ significantly for the six machines.
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