You are a store manager in a chain coffee shop. One customer complained the waiting time was too long, unbearable. Actually, this was the second complaint you got this month. Although not a standard or goal in the industry for the time it should take from the time a customer orders to the time they get their drink, it is estimated the average wait time would be around 4 mins in a competitive coffee store. You supposed your store used to be one of the competitive coffee stores but now there were some problems. Concerning the complaints from customers, plan a survey and confirm the waiting time in the store is longer than 4 mins and some actions need to be taken. Please design a survey or an observation to get the data of wait time. Provide the details of your plan. Introduce how to do the data analysis with the inferential statistics. Use the simulation data and draw a conclusion. Discuss the practical implications of your research, such as how to take action based on your findings of the research.