istic in this 1 about the study. Be sure to address significance, alization. estimation (confidence interval), causation, and gener- CPR nd verify 5.3.14 Recall Exercise 5.2.7 about investigating whether using the giving chest-compression-only (CC) instructions rather than standard cardiopulmonary resuscitation (CPR) in- val in this structions to the witness of a heart attack will improve the victim's chance of surviving. Researchers Hupfl et al. (The Lancet, 2010) combined the results from three randomized - P2) experiments. In each experiment, the emergency services n2 dispatcher randomly assigned either CC or CPR instruc- verify the tions to the bystander who was at the site where a person using the had just experienced a heart attack. They found that of the 1,500 cases where CC instructions had been given, 211 people had survived, whereas out of the 1,531 cases where vestigate standard CPR instructions had been given, the number compli- was 178. am uses a. Define (in words) the parameters of interest of this study. p-value Also, assign symbols to the parameters. ficance. b. State the appropriate null and alternative hypotheses in words. c. State the appropriate null and alternative hypotheses in symbols. It et al. tigated d. Explain why it is valid to use the theory-based approach was to test the hypotheses stated above. ces af- e. Use an appropriate applet to find a theory-based p-value earch- to test the above hypotheses. Report the standardized er and statistic as well as the p-value. ng 367 f. Use an appropriate applet to find a theory-based 95% about confidence interval and interpret the resulting interval in lied of the context of the study. serva- g. Based on your findings, state a complete conclu sion about the study. Be sure to address significance, study. estimation (confidence interval), causation, and gener- alization