Investigators are studying two anesthetics for individuals being treated for pain. The outcome is the time until complete numbing of pain (Y); two other variables are which anesthetic was given (X1=O for drug A; X1=1 for drug B) and sex assigned at birth (X2=O for male; X2=1 for female). Select all of the following questions that are correct given the information in the table below. Estimate Std. Error g-valueg-value (Intercept) 11.12 1.97 5.66 0.002 drug 2.59 3.03 0.85 0.395 sex 5.77 3.25 1.78 0.079 drug x sex -3.19 4.54 -0.70 0.485 Rsquared 0.144 C] The p-value of 0.079 for sex tells us that there is no evidence of sex differences in mean time until numbing of pain. C] The model with main effects only for drug and sex (no interaction) would have an R-squared value less than 0.144 C] The difference between the coefcients 5.77 and -3.19 tells us that sex is a confounder of the difference in mean time to numbing of pain between the two drugs. C] The p-value of 0.485 tells us that we have no evidence sex is an effect modier of the difference in mean time to numbing of pain between the two drugs