Census data for a certain county show that 20% of the adult residents are Hispanic. Suppose 78 people are called for jury duty and only 12 of them are Hispanic. Does this apparent underrepresentation of Hispanics call into question the fairness of the jury selection system? Explain. Write appropriate hypotheses. Ho= HA= The test statistic is= The P-value is= Round to three decimals for both! State your conclusion assuming a P-value smaller than 0.05 is significant. _______ the null hypothesis. There _____ sufficient evidence to conclude that the proportion of Hispanics in the jury pool is _____ the proportion of Hispanics in the population.
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2. - Alternative Hypothesis (HA): The population proportion of Hispanics in the jury pool is less than 0.2. Show more…
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According to the 2010 Census, 16% of the people in the United States are of Hispanic or Latino origin. One county supervisor believes her county has a different proportion of Hispanic people than the nation as a whole. She looks at their most recent survey data, which was a random sample of 437 county residents, and found that 44 of those surveyed are of Hispanic origin. Using ∝ =0.05. a) State the hypotheses b) Name the model and check appropriate conditions for the hypothesis test c) Calculate the test Statistic and P-value d) State your conclusion
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