Question: The output below is from a multiple linear regression of surface finish on cutting RPM and cutting bit type, where bit type is a categorical

The output below is from a multiple linear

The output below is from a multiple linear regression of surface finish on cutting RPM and cutting bit type, where bit type is a categorical variable taking values A,B,C, or D. To run the regression, indicators have been generated for bit types B,C, and D, e.g., if the bit is of type B then the indicator for B will take value 1 and all others will take value 0 . Based on the analysis - what is the expected surface finished when the RPMs equal 250 and the bit used is of type A (please round your answer to the closest 10th, i.e., the first decimal place)

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