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What proportion of adults in the US do not use the internet? In 2010, it was...

What proportion of adults in the US do not use the internet? In 2010, it was estimated that 24% of adults in the US did not use the internet. Improved internet infrastructure, the ability to connect with others, and many other factors seem to be contributing to more people using the internet. Suppose we randomly select 120 individuals and ask them whether or not they use the internet. Suppose we find that 12 people do not use the internet. Conduct a hypothesis test using α = .01. Make sure to state the null and alternative hypotheses, state the appropriate test statistic, set up the rejection region, find the P-value for this test, make your conclusion using both the rejection region method and the P-value, and state your conclusion in the context of the problem.

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Answer #1

(1) Null and Alternative Hypotehsis:

H0: Not improve the number of internet connections after Improved internet infrastructure

H1: improve the number of internet connections after Improved internet infrastructure

i.e.

Thus we conclude that  improve the number of internet connections after Improved internet infrastructure

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