a) Compute the least-squares line for predicting y from 1/x. Round the answers to three decimal places. b) Using the better fitting line, find a 95% confidence interval for the mean value of y when x = 5.0. Round the answers to three decimal places.

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Author:Amos Gilat
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a) Compute the least-squares line for predicting from 1/x. Round the answers to three decimal places.

b) Using the better fitting line, find a 95% confidence interval for the mean value of when = 5.0. Round the answers to three decimal places.

The 95% confidence interval for the mean value of when = 5.0 is?

The article "Oxidation State and Activities of Chromium Oxides in CaO-SiO2-CrOx Slag System" (Y. Xiao, L. Holappa, and M. Reuter, Metallurgical
and Materials Transactions B, 2002:595–603) presents the amount x (in mole percent) and activity coefficient y of Cro1.5 for several
specimens. The data, extracted from a larger table, are presented in the following table.
y
y
y
10.2
2.6
7.13
5.8
5.33
13.1
5.03
19.9
3.4
29.4
16.7
0.6
8.84
0.8
5.57
2.2
9.75
2.2
6.62
5.3
7.23
5.5
2.74
16.9
2.89
20.3
2.12
33.1
2.58
35.5
2.31
39.4
1.67
44.2
1.5
48
Transcribed Image Text:The article "Oxidation State and Activities of Chromium Oxides in CaO-SiO2-CrOx Slag System" (Y. Xiao, L. Holappa, and M. Reuter, Metallurgical and Materials Transactions B, 2002:595–603) presents the amount x (in mole percent) and activity coefficient y of Cro1.5 for several specimens. The data, extracted from a larger table, are presented in the following table. y y y 10.2 2.6 7.13 5.8 5.33 13.1 5.03 19.9 3.4 29.4 16.7 0.6 8.84 0.8 5.57 2.2 9.75 2.2 6.62 5.3 7.23 5.5 2.74 16.9 2.89 20.3 2.12 33.1 2.58 35.5 2.31 39.4 1.67 44.2 1.5 48
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