HTHSCI 2S03 Study Guide - Comprehensive Final Exam Guide - Test Statistic, Random Variable, Normal Distribution

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 2S03
• Professor: Peter Heli

Document Summary

1: looking at the data: a first look at graphing data (ch. The raw material of statistics, usually defined as numbers. Two types of numbers that are used in statistics are from: taking of a measurement- units, the process of counting- data that fall i(cid:374)to (cid:272)atego(cid:396)ies (cid:862)frequencies(cid:863) Mutually exclusive: you can only fit into one category. Collectively exhaustive: all pieces of data have a category that they fit into. Intervals are not fixed 1-2 is not necessarily the same as 9-10 if large # of categories (10+), can create an average. The interval scale: it is not only possible to order measurements, but also the distance between any two measurements. Intervals are fixed- example: 2 degrees to 3 degrees is the same jump as 9 to 10 degrees: 0 is arbitrary- 0 temperature does not mean 0 energy. The ratio scale: highest level of measurement, intervals and ratios between numbers are meaningful.