Interpretation of Regression Coefficients: Elasticity and Logarithmic Transformation · Exercise 3
The manufacturers of a chemical used in flea collars claim that under standard test conditions each additional unit of the chemical will bring about a reduction of 5 fleas (i.e. where and , :
Suppose that a test has been conducted and results from a computer include:
Intercept = 60
Slope = −4
Standard error of the regression coefficient = 1.0
Degrees of Freedom for Error = 2000
95% Confidence Interval for the slope −2.04, −5.96
Is this evidence consistent with the claim that the number of fleas is reduced at a rate of 5 fleas per unit chemical?
OpenStax, Introductory Business Statistics 2e · §13.5 Interpretation of Regression Coefficients: Elasticity and Logarithmic Transformation · Exercise 3
No hints for this one.
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