A poll was taken every month on how voters will vote on the next federal election
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A poll was taken every month on how voters will vote on the next federal election

Question 8

A poll was taken every month on how voters will vote on the next federal election

 

Sample Size

Number of Voters Voting Liberal

This month

650

364

Last month

700

336

1. Develop a 95% confidence interval estimate for the difference between the proportions of voters who will vote for the Liberals in the two samples. Show your computation.

2. Is there conclusive evidence that one of the proportions is significantly different from the other?  Explain using the results of part a.  Do not perform any test.

Hint
StatisticsStatistics employ confidence intervals for the description of uncertainty amount relative to a population’s parameters sample estimate. A confidence interval’s expression necessitates three information types namely: confidence level, statistic, and margin of error. In most instances the margin of error is not given....
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