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In 2015, it was recorded that around 34% of the population in 2015 were not married. A researcher surveyed a random sample of 500 couples.

In 2015, it was recorded that around 34% of the population in 2015 were not married. A researcher surveyed a random sample of 500 couples. He found out that 18% of them were living together but unmarried. Test at 5% significance level if the current percentage of unmarried couples is different from 34%.

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