A psychologist wants to know if technology use affects our happiness.  They randomly select 90 individuals and measure their happiness (0-100) and classify their technology use into one of three categories (low, medium, and high).  Use the data Happiness and Tech Survey in StatCrunch to test if the mean happiness scores of the 3 technology groups are different.  (Let α = 0.10) What are the hypothesis statements for this situation?

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A:

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Q: , what is the test statistic and p-value?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.