QMS 102 Study Guide - Midterm Guide: Royal Institute Of Technology, Weighted Arithmetic Mean, Quartile

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Clare Chua

Document Summary

Ordinal- are categorical data where there is a logical ordering to the categories. (the simplest ordinal scale is a ranking) Interval- 0" is only an arbitrary reference point 0" does not mean. Nothing the interval scale of measurement only permits mathematical operations of addition and subtraction. Check to see if 0" does mean the absence of the characteristic being measured, i. e. , 0"= nothing". Check to see if addition/subtract data values and get meaningful results. Ratio- 0" does mean the absence of the characteristic being measured, 0" does mean the absence of the characteristic being measured, 0"= nothing". Stems: should be from 6 to 13 stems, should be consecutive numbers or repeated numbers. The numbers may each be repeated twice or 5 times: units must be indicated if stem not be taken at face value, there must be at least one leaf associated with the first and the last stem. Step #1: cw = (h-l) divided by 5.