MGMT 1050 Chapter Notes - Chapter 5: Simple Random Sample, Stratified Sampling, The Literary Digest
Document Summary
Asking people whether they take aspirin regularly results in side effects: experiment could control variables, actually perform a test to prove/disprove hypothesis, ex. Creating two groups of people, one group would take aspirin regularly, the other group wouldn"t: surveys gets information from people on various topics, response rate: the amount of people who complete the survey. The higher the response rate, the more accurate the data. Questionnaire tips: kept as short as possible, clearly and simply worded, should begin with simple demographic questions. Yes" and no" questions are useful due to simplicity: open ended questions allow for more opinions to be expressed. Chief motive for examining a sample rather than a population is cost. Sample proportion is used as an estimate of the population proportion (data collected from sample is used as estimate of population results) Target population: population which we want to draw inferences.
