Researchers in a 2015 study by Flannery et al. sought to estimate the effectiveness of the seasonal influenza vaccine in preventing acute respiratory infection (ARD). A total of 475 subjects from Washington who showed symptoms of ARI were recruited for this study. The data provided show the result of each subject's test for influenza. Click to download the data in your preferred format. CrunchIt! CSV Excel JMP Mac-Text Minitab PC-Text R SPSS TI Cale Suppose the researchers wish to construct a 95% z-confidence interval for the proportion of patients with ARI symptoms who would test positive for influenza. Calculate the lower and upper bounds of this confidence interval. Please specify your answer as a decimal, rounded to at least three decimal places. lower bound: upper bound; Select the sentence that represents the correct conclusion for the 95% z-confidence interval. () The researchers are 95% confident that the true sample proportion of patients with ARI symptoms who would test positive for influenza is between the lower and upper bounds of the interval. O The assumptions for a z-confidence interval are not satisfied, and thus, no conclusions can be drawn from this interval. The researchers are 95% confident that the the lower and upper bounds of the interval contains the true population proportion of patients with ARI symptoms who would test positive for influenza. () There is a 95% chance that the true sample proportion of patients with ARI symptoms who would test positive for influenza is between the lower and upper bounds of the interval. There is a 95% chance that the true population proportion of patients with ARI symptoms who would test positive for influenza will fall between the lower and upper bounds of the interval