If we observed a weld that had a diameter of 235 that had a strength 1000,the residual is -79.
What is diameter?
The line through the Centre of a circle with two extremes on its circumference is referred to as a circle's diameter.
What is residual?
The residue refers to the insoluble (undissolved) contaminants that remain on the filter paper after filtration.
1) if the diameter is 201 then, we would expect the mean strength to be 864.
2) we should not use the least square regression line to calculate this value as value of diameter s¹ is out of given, range of diameter.
3) Δ= 941.6992+8.5988* 235
= 1079.0188
Residual = 1000- 1079.0188
= -79
Therefore, If we observed a weld that had a diameter of 235 that had a strength 1000,the residual is -79.
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