A Sample of 2,000 Union Members Was Selected,and a Survey

question 54

True/False

A sample of 2,000 union members was selected,and a survey recorded their opinions regarding a proposed management union contract. A total of 1,600 members were in favor of it. A 95% confidence interval estimated that the population proportion was between 0.78 and 0.82. This indicates that about 80 out of 100 similarly constructed intervals would include the population proportion.

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Definitions:

Personal Interviews

A method of qualitative research where information is gathered through direct, face-to-face conversation between an interviewer and a respondent.

In-depth Answers

Thorough and comprehensive responses designed to fully address a question or explore a topic.

Mean

A statistical measure representing the average value of a set of numbers, calculated by dividing the sum of all values by the number of values.

Median

A statistical measure representing the middle value in a data set, where half the numbers are above and half are below.