Dataset:  interview.dat

Source: J.S. Stock and J.R. Hochsteim (1951). "A Method
of Measuring Interviewer Variability", Public Opinion
Quarterly, Vol. 15 #2, pp322-334.

Description: Experiment to study interviewer variability for
Census Bureau. 6 Interviewers obtaining prices of men's worsted
suits from 3 types of store (Department, Family Apparel,Men's apparel)

Variables/Columns
Interviewer  1
Store Type 3  /* 1=Dept 2=Family   3=Mens  */
Price  5-8