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A news article reports that Americans have differing views on two potentially inconvenient and invasive practices that airports could implement to uncover potential terrorist attacks This news piece was based on a survey conducted among a random sample of 1 141 adults nationwide interviewed by telephone where one of the questions on the survey was Some airports are now using full body digital x ray machines to electronically screen passengers in airport security lines Do you think these new x ray machines should or should not be used at airports Below is a summary of responses based on party affiliation Answer O Ho PR SPD HA PR PD O Ho PR PD HA PR SPD Ho PR PD HA PR PD O Ho PR SPD HA PR PD Should Should not Don t know No answer Total O Ho PR PD HA PR PD Republican 264 39 17 320 a Conduct an appropriate hypothesis test evaluating whether there is a difference in the proportion of Republicans and Democrats who think the full body scans should be applied in airports Assume that all relevant conditions are met Use a significance level of 0 05 Use PR PD State the appropriate null and alternative hypotheses Party Affiliation Democrat 299 56 15 370 Independent 351 77 23 451 1 Calculate the test statistic and determine the p value Round your test statistic to two decimal places and your p value to four decimal places

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