Has the booking process been in statistical control?

Suppose we use a $95$ percent p$-$chart. How do the upper and lower control limits change? What are your conclusions about the booking process?

Suppose that the sample size is reduced to $2,000$ instead of $2,500.$ How does this affect the chart?

What happens to the chart as we reduce the z$-$value?

What happens to the chart as we reduce the confidence level?