Please help with letter C

The type of control chart that is best to monitor this process is a) Establish the control limits to include 99.73% of the random variation in defectives. UCLp= (enter your response as a number between 0 and 1, rounded to three decimal places). LCLp= (enter your response as a number between 0 and 1, rounded to three decimal places). b) Has the process been in control? Based on the developed control limits, the number of defectives has been c) If the sample size were 20 instead, how would your limits and conclusions change? UCLp= (enter your response as a number between 0 and 1 , rounded to three decimal places)