A Sample of Union Members Was Selected and Their Opinions

Multiple Choice

A sample of union members was selected and their opinions regarding the proposed management union contract were recorded with 1,600 out of the 2,000 members in favour of it. Using a 95% confidence level, the interval estimate for the population proportion was computed to be 0.78 and 0.82.

A) This indicates that about 68 out of 100 similarly constructed intervals would include the population proportion.
B) This indicates that about 95 out of 100 similarly constructed intervals would include the population proportion.
C) This indicates that about 99 out of 100 similarly constructed intervals would include the population proportion.
D) This indicates that about 78 out of 100 similarly constructed intervals would include the population proportion.