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wrote...
Posts: 251
2 weeks ago
Breaking strength A company manufactures polypropylene rope in six different sizes. To assess the strength of the ropes they test two samples of each size to see how much force (in kilograms) the ropes will hold without breaking. The table shows the results of the tests. We want to create a model for predicting the breaking strength from the diameter of the rope.


a. Find a model that uses re-expressed data to straighten the scatterplot.
b. The company is thinking of introducing a new 25mm rope. How strong should it be? (Write a sentence in context based on one of your models.)
Textbook 

Stats: Modeling the World


Edition: 4th
Authors:
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wrote...
2 weeks ago
a.   = 2.64 + 1.37dia (among other possibilities)
b.  The model estimates this rope will have an approximate breaking strength of 1367 kg, but this extrapolation should be viewed with caution.
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