A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? E Click the icon to view the data table. Determine the null and alternative hypotheses. More Info O A. Ho: The amount of smoking is dependent upon seat be H,: The amount of smoking is not dependent upon sea B. Ho: The amount of smoking is independent of seat belt H,: The amount of smoking is not independent of seat Number of Cigarettes Smoked per Day O 15-34 35 and over 1-14 O C. Ho: Heavy smokers are not less likely than non-smoke H,: Heavy smokers are less likely than non-smokers to Wear Seat Belts 183 30 47 8 Don't Wear Seat Belts 157 17 37 11 O D. Ho: Heavy smokers are less likely than non-smokers to H: Heavy smokers are not less likely than non-smoke Print Done Determine the test statistic. x2 = (Round to three decimal places as needed.)

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Portland State University (PSU) reported that 64% of their students receive financial aid. A PSU administrator feels that their school may have a different proportion compared to all of Oregon schools. A random sample of 409 students in Oregon found that 259 receive financial aid. Test the claim that proportion of students that receive financial aid in Oregon is different than PSU. Use a 1% significance level. Give answer to at least 4 decimal places. a. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Ho: Select an answer ?v H₁: Select an answer ? ✓ Based on the hypotheses, compute the following: b. Test Statistic = c. p-value = d. Based on the above we choose to Select an answer e. The correct summary would be: Select an answer that the proportion of students that receive financial aid in Oregon is different than the PSU reported value of 64%.

The table below summarizes data from a survey of a sample of women. Using a 0.05 significance​ level, and assuming that the sample sizes of 800 men and 400 women are​ predetermined, test the claim that the proportions of​ agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of​ women?                 Gender of Interviewer         Man Woman     Women who agree   535 344     Women who disagree   265 56       Click here to view the chi-square distribution table. LOADING... Identify the null and alternative hypotheses. Choose the correct answer below.   A. H0​: The proportions of​ agree/disagree responses are different for the subjects interviewed by men and the subjects interviewed by women. H1​: The proportions are the same.   B. H0​: The proportions of​ agree/disagree…

The table below summarizes data from a survey of a sample of women. Using a 0.05 significance​ level, and assuming that the sample sizes of 900 men and 400 women are​ predetermined, test the claim that the proportions of​ agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of​ women?   Gender of Interviewer         Man Woman     Women who agree   532 349     Women who disagree   368 51       Identify the null and alternative hypotheses. Compute the test statistic. Find the critical​ value(s). What is the conclusion based on the hypothesis​ test? Reject or fail to reject? Is there sufficient evidence? Does it appear that the gender of the interviewer affected the responses of women?

You want to find the prevalence of e-cigarette smoking is a given community. Which of these study designs would you use to test the hypothesis?  Case-controlB. Cross-sectionalC. Cohort D. Experimental trials