Thread: Problem desired least square lines

The failure rate of a certain electronic device is suspected to increase linearly with its temparature . Fit a least- square linear line through the data (two measurments were taken for each given temparature)



i) Obtain desired least-square line
ii) Obtain predicted failure rate at F

Originally Posted by Stats

The failure rate of a certain electronic device is suspected to increase linearly with its temparature . Fit a least- square linear line through the data (two measurments were taken for each given temparature)



i) Obtain desired least-square line
ii) Obtain predicted failure rate at F

Can you use technology or must it be done by hand? If by hand, please post the all formulae you have been given for doing this.

I have to guess that your model is .
I have JMP here.
It's real easy using that.