Mathematics, 31.12.2021 14:00 destinybonmer
In 2014, the proportion of individuals living in Poland who said they were happy was 0.927. In a 2021 random sample of 1,325 Polish adults, 1,206 said they werehappy. Has the proportion of individuals in Poland who say they are happy gone down since the 2014 survey? Use 0.05 as the level of significance.
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In 2014, the proportion of individuals living in Poland who said they were happy was 0.927. In a 202...
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