As a big boss of a company, you want to figure out the average weight of all your employees. However, since you have so many employees, making you impossible to gather all the information of everyone. You randomly selected 10 employees and stored their weight information in a vector x. x<-c(400,100,200,150,250,350,200,100,380,170)

(1) What is the population in this setting? (2) Suppose the weight of all your employees is normally distributed and you don't know the values of any population parameters. Please construct a 95% Confidence Interval Well, you can use R as a calculator and show the results