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Name 1. In a random sample of 857 college students, 142 of them said that they smoke. Use a 0.05 significance level to test the

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Name 1. In a random sample of 857 college students, 142 of them said that they smoke. Use a 0.05 significance level to test the claim that fewer than 20% of college students smoke. a) Identify the null hypothesis Ho and the alternative hypothesis Hj. Label the claim. b) Find the critical value. Round to 2 decimal places. c) Find the test statistic using the formula = = Round to 3 decimal places, d) Draw a graph and include the test statistic, critical value, and the critical region. e) State the final conclusion (reject the null hypothesis or fail to reject the null hypothesis) () Write a sentence to interpret the decision in the context of the original claim

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