CPUS made of two different materials are tested to see how they effect the processor speed of a computer. Specifically, material 1 is currently in use, but material 2 is acceptable. Since material 2 is cheaper, it should be adopted, providing it does not change the process yield. A test is run and results are obtained as follows. n = 8 8. 2.39 2.98 92.255 X2 92.733 Construct a 99% confidence interval for the difference of means under equal variance case.

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CPUS made of two different materials are tested to see how they effect the processor speed of a computer. Specifically, material 1 is currently in use, but material 2 is acceptable. Since material 2 is
cheaper, it should be adopted, providing it does not change the process yield. A test is run and results are obtained as follows.
n = 8
n, = 8
81
2.39
82
2.98
X1 = 92.255 X2 = 92.733
Construct a 99% confidence interval for the difference of means under equal variance case.
Transcribed Image Text:CPUS made of two different materials are tested to see how they effect the processor speed of a computer. Specifically, material 1 is currently in use, but material 2 is acceptable. Since material 2 is cheaper, it should be adopted, providing it does not change the process yield. A test is run and results are obtained as follows. n = 8 n, = 8 81 2.39 82 2.98 X1 = 92.255 X2 = 92.733 Construct a 99% confidence interval for the difference of means under equal variance case.
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