One month later, this engineer decides to change the sampling strategy by checking $400$ boards at

each sampling hour by considering the increased production throughput. Under this new sampling

strategy, how do you suggest for continuously monitoring such a process $($selecting a c chart or u

chart$)$ and why? Please define the random variable that follows the Poisson distribution and provide

the distribution parameter correspondingly. $(0\mathrm{.}5$ point$)($The process$$s Phase I condition is not

changed under this new sampling strategy$)$