You stand at a register in a hospital cafeteria; for each patron, you gather two pieces of information: professional role (nurse, doctor, other), as indicated on his or her badge, and the amount of his or her bill (as shown on the register).
Data set: Ch 03 – Exercise 06.sav
Codebook
Variable: ProfRole

Definition: Professional role
Type: Categorical (1 = Nurse, 2 = Doctor, 3 = Other)
Variable: Bill
Definition: Total as shown on the register
Type: Continuous
a. Run descriptive statistics and a histogram with a normal curve for Bill for the whole data set.
b. Run descriptive statistics and a bar chart for ProfRole for the whole data set.
c. Run descriptive statistics and a histogram with a normal curve for Bill for Nurse only.
d. Run descriptive statistics and a histogram with a normal curve for Bill for Doctor only.
e. Run descriptive statistics and a histogram with a normal curve for Bill for Other only.