york.csv contains data on Self-Reports of Height and Weight Among Men and Women Active in Exercise from Departments of Physical Education and Psychology, York University. Please answer q.1-4 below. If you finish early and would like a challenge question, use "twoway" to compare the relationship between actual height and actual weight for men and women.

1. What is the mean measured weight? (use STATA)

a. 65.8

b. 56.4

c. 70.2

d. 55

e. 65.4

f. Not sure

2. What is the mean measured weight for men? (hint: you need to use "if" in your command. Round to one decimal place.)

a. 75.9

b. 57.9

c. 65.8

d. 77.5

e. 54.4

f. Not sure

3. Which of the equation below represents the relationship between measured weights (y) and measured heights (x)? (hint: you need to use "reg" in your command. Round to two decimal places.)

a. y = -0.24x+25.27

b. y = 0.23x+26.33

c. y = 0.23x+25.27

d. y = 0.24x+25.27

e. Not sure

4. Among the commands below, which one will generate a new variable that represents the difference between measured weights and reported weights?