Please tell me how to find the right slope for this Arrhenius Equation/Activation Energy question, I don't understand what is meant by "calculate the slope of the best straight line using linear regression", and googling has not been any help. I have tried removing the points that did not seem to produce a straight line from the original graph and then using excel to give the slope that way and it also was not helpful in the slightest.

Arrhenius Equation -- Activation Energy The effect of temperature on the rate of a reaction was studied and the following data obtained: It is known that the variation of the rate constant k with the absolute temperature T is described by the Arrhenius equation: k=Aexp[(Ea)/(RT)] where Ea is the activation energy, R is the universal gas constant and A is the pre-exponential factor (units of the rate constant lnk=lnARTEa For a plot of y=lnk versus x=1/T, calculate the slope of the best straight line using linear regression. ln(k) vs 1/T