A2-Q.2 (10 marks) Consider the data, file BaseballSalary2.csv, consist of the salaries of 797 baseball players...

 

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A2-Q.2 (10 marks) Consider the data, file BaseballSalary2.csv, consist of the salaries of 797 baseball players from the rosters of all major league teams in November, 2004. We will use this file as a population. Use R to answer the following parts. Set the seed of your randomization to be the last 3 digits of your student number. #R code to read the data dataset<-read.csv head (dataset) 1 2 3 4 5 6 baseballPlayer ("BaseballSalary2.csv", header=T) [, 2:3] salary 1 6200000 2 11000000 3 375000 4 375000 5 2150000 6 7750000 For each question, report the R. code, the R output, and your answer. (a) Calculate logsal= log(salary). Find the population mean and population variance for the variable logsal. (1 mark) (b) Take a simple random sample without replacement (SRS) of 150 players. Construct a histogram of the variables salary and logsal. Does the distribution of salary appear approximately normal? What about logsal? Compute the sample mean and variance for the variable logsal. (2 marks) A2-Q.2 (10 marks) Consider the data, file BaseballSalary2.csv, consist of the salaries of 797 baseball players from the rosters of all major league teams in November, 2004. We will use this file as a population. Use R to answer the following parts. Set the seed of your randomization to be the last 3 digits of your student number. #R code to read the data dataset<-read.csv head (dataset) 1 2 3 4 5 6 baseballPlayer ("BaseballSalary2.csv", header=T) [, 2:3] salary 1 6200000 2 11000000 3 375000 4 375000 5 2150000 6 7750000 For each question, report the R. code, the R output, and your answer. (a) Calculate logsal= log(salary). Find the population mean and population variance for the variable logsal. (1 mark) (b) Take a simple random sample without replacement (SRS) of 150 players. Construct a histogram of the variables salary and logsal. Does the distribution of salary appear approximately normal? What about logsal? Compute the sample mean and variance for the variable logsal. (2 marks)

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