I am stuck and having issues estimating the probability and estimating the amount of months necessary to double success probability.

1. A computer team manager collected data on x = months of experience for a computer programmer us. a binary {success or failure] 1urariable for a particular programming task. He used SPSS to obtain the ho and b1 for a logistic regression to es mate the probability of success a function of the number of months of experience. 1lilarlablle: in the Equation E! SE. Weld [If 5' . Ex B Step 1- I'iBfll .151 .055 BATE I .013 1.1T5 Constant -3.D 1.259 5.90:! I .015 .114? e. Vedahlefa]: entered on step I: excellence. D a. [E] use the results to estimate the probability of success for a programmer with 12 months experience {this 1iralue is not an extrapolation it is well within the range of x-yalues used to fit the regression model]. b. {2] How many additional months experience would you estimate mat this programmer needs in order for his success probability to doubleiI