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BUSI 230 Week 2 Study Guide.

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Sample of Convenience A sample that is not drawn by a well-defined random method. - Ex: A researcher asks everyone in a particular barbershop their opinions on world politics. Is this number a para... meter or a statistic? 54% of employees at a certain company are male. Parameter Statistics Examples In a new survey of new automobile owners, 43% plan to buy another new vehicle within four years. In a survey of voters, 77% plan to vote for the incumbent A student artist number hers pieces and selects every 4th one for a gallery showing Systematic Sample Simple Random Sample A simple random sample of size n is a sample chosen by a method in which each collection of n population items is equally likely to make up the sample, just as in a lottery. - Ex: a reality show assigns all qualified applicants a number and uses a random number generator to select the participant list. A manager at a family amusement park post a Facebook ad asking for feedback on the new rides Voluntary Response A news reporter at a family amusement park conducts a __________ sample by randomly selecting a ride and then interviewing all the people who just exited the ride. cluster Stratified The student government association at a certain college draws a random sample of 20 freshman, a random sample of 20 sophomores, and a random sample of 30 juniors and a random sample of 30 seniors to ask their opinion about a new grading policy. Determine whether the data described are qualitative or quantitative. The maximum speed limit on interstate highways. Quantitative Determine whether the data describe [Show More]

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