CAS MA 113- Final Exam Guide - Comprehensive Notes for the exam ( 26 pages long!)
28 Mar 2018
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Cas ma 113- lecture 3 notes- data collection: sampling methods. Descriptive statistics: collecting, presenting, and describing data. Inferential statistics: drawing conclusions and/or making decisions concerning a population based only on sample data. One state has a population of 300 million, the other has a population of 50 million. The population of the entire country is 1 billion. Ni is the population number of the subgroup. N is the population number of the parent group. S is the percentage of individuals in the subgroup population that should be sampled. From the example, we can determine the number of people to be sampled in the larger state: Therefore, 30% of the population in the large state should be sampled. Applying this equation again to the smaller state, it is found that 5% of the population in that state should be sampled. Every individual or item from the population has an equal chance of being selected.
