10. Identifying the measurement scale of data
Do women wait longer than men to receive their orders at coffee shops? This question was studied by an economics major at Middlebury College. [Myers, C. K. (2007). Ladies first: A field study of discrimination in coffee shops. Middlebury College Economics Discussion Paper No. 07-11.]
For a sample of customers, data were collected on the following variables:
•Wait Time (in seconds)•Gender (0 = male; 1 = female)•Age Group (0 = less than 25; 1 = 26 to 40; 2 = over 40)•Order (0 = regular; 1 = fancy)•Appearance (ranked on a scale from 1 to 10)