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Identify null hypothesis and alternative hypothesis

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A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand. State the null hypothesis and the alternative hypothesis for a test of significance.

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This solution provides an example of how to identify the null and alternative hypotheses.

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Null hypothesis, alternative hypothesis

(a) Write the Claim mathematically and identify Ho and Ha
(b) Find the critical value(s) and identify the rejection region(s)
(c) Find the Standardized test statistics.
(d) Decide whether to reject or fail to reject the null hypothesis
In a sample of 1788 of home buyers, you find that 637 home buyers found their real estate agents through a friend. At 0.08, can you reject the claim that 40% of home buyers find their real estate agents through a friend?
Write the Claim mathematically and identify Ho and Ha

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