Performing the hypothesis test


In a survey, 1864 out of 2246 randomly selected adults in the United States said that texting while driving should be illegal (based on data from Zogby International). Consider a hypothesis test that uses a 0.05 significance level to test the claim that more than 80% of adults believe that texting while driving should be illegal. a. What is the sample proportion, p-hat? b. What would be the null hypothesis? c. What would be the alternate hypothesis? d. Construct a 95% confidence interval for the population proportion. e. Explain what this confidence interval means. f. By performing the hypothesis test, determine if the survey results support the claim or not.

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Basic Statistics: Performing the hypothesis test
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