Question: A restaurant manager tracks complaints from the diner satisfaction cards that are turned in at each table. The data collected from the past week's diners appear in the following table.

a) Draw a Pareto chart for this data

b) What categories comprise about 20% of the total complaints?

c) On the cumulative curve, there is a point representing cumulative frequency of “slow service” complains. How the value of this point is calculated? Show all steps and numbers.