urgent , please solve fast and correctly

(A) If a 0.3 M solution of NaOH was used to titrate 100 mL of 0.3 M solution of CH3COOH (Ka =1.8 x 10-5) and the following volumes of NaOH were recorded: 102, 97, 99, 98, 101, 106 mL. 1. The pH value is...............when added 99.0 mL of 0.3 M NaOH 2. The pH of the solution at the equivalence point more than 7 Because.... 3. Calculate the 99% confidence limits of the mean? And use them to decide whether there is any evidence of systematic error