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 X _j = amount of chemical and Y_J = B₀ + B₁ ⋅ X_J + E_J , H₀ : B₁ = −5 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?