A study was done to see the relationship of Percent W/O cracks (y) with three variables, Steel temperature(X1, Percent carbon (X2), Oil temperature(X3) using a sample of n=8 runs. Some of the information is as follows: Variable par ameter Standard Error Estimate Constant -150.433 54.573 X1 0.153 0.034 X2 -25.000 25.311 X3 0.030 0.101 What is the 95% confidence interval for B1 ? O (0.059, 0.247) O (0.081, 0.225) O (d. (0.119, o.187) O (0.045, 0.261)
A study was done to see the relationship of Percent W/O cracks (y) with three variables, Steel temperature(X1, Percent carbon (X2), Oil temperature(X3) using a sample of n=8 runs. Some of the information is as follows: Variable par ameter Standard Error Estimate Constant -150.433 54.573 X1 0.153 0.034 X2 -25.000 25.311 X3 0.030 0.101 What is the 95% confidence interval for B1 ? O (0.059, 0.247) O (0.081, 0.225) O (d. (0.119, o.187) O (0.045, 0.261)
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Need help finding confidence interval for B1

Transcribed Image Text:A study was done to see the relationship of Percent WIO cracks (y) with three variables, Steel
temperature(X1, Percent carbon (X2), Oil temperature(X3) using a sample of n=8 runs. Some of
the information is as follows:
Variable
parameter Standard
Estimate
Error
Constant
-150.433
54.573
X1
0.153
0.034
X2
-25.000
25.311
X3
0.030
0.101
What is the 95% confidence interval for B, ?
(0.059, 0.247)
(0.081, 0.225)
(d. (0.119, 0.187)
O (0.045, 0.261)
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