Dr. Nadia believes that more people like cats than dogs and designs a survey to test this. She asks people a single question: Which do you prefer: (a) cats or (b) dogs? In a sample of 25 participants, she finds that 80% (20 of 25) prefer cats over dogs. She wants to run a two-tailed test with a critical alpha of .05. Calculate a two-sided 95% confidence interval. Use the Plus 4 method. Calculate the z-test statistic and two-Tailed p-value for this hypothesis test. Use the Plus 4 method. Alpha is .05. In words, what are the conclusions of this hypothesis test? If assumptions are not met, make sure to take that into account in your interpretation