| Question |
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| a. Does the relationship between these two variables seem to be direct or inverse? Does this accord with common sense? Why or why not? Does the relationship seem to be linear? b. Calculate the least- squares regression of shear strength on weld diameter. c. Plot the regression line. Use this regression line to predict the average shear strength of a weld 1/5 inch in diameter. Use the regression line to predict the average shear strength of a weld 1/4 inch in diameter. |
