STATS 10 Lecture Notes - Lecture 12: Convenience Sampling, Pew Research Center, The Literary Digest
Document Summary
Population: group of people or objects we wish to study. Parameter: numerical value characterizing some aspect of population. Census: survey in which every member of population is measured. Sample: collection of people/objects taken from population. Statistics: number that estimates a population parameter derived from sample; sometimes called estimators, and the numbers that result are called estimates. Population size: very large, often unknown and usually impossible to obtain all values. Greek letters are used to represent population parameters. Latin letters are used to represent sample statistics. In february 2014, the pew research center surveyed 1428 adults in the united states who were married or in a committed partnership. The survey found that 25% of cell phone owners felt that their spouse or partner was distracted by her or his cell phone when they were together. Population: adults in the united states who were married or in a committed partnership and owned a cell phone.
