In a sample of 88 children randomly selected from a particular town, it is found that 13 of them suffer from asthma. We wish to test whether that the proportion of all children in the town who suffer from asthma is equal to 1 1%. Test and CI for One Proportion p: event proportion Normal approximation method is used for this analysis. Descriptive Statistics N Event Sample p 95% CI for p 88 13 0.147727 (0.073592, 0.221863) Test Null hypothesis H : p=0.11 Alternative hypothesis H,: p #0.11 Z-Value P-Value 1.13 0.258 Does the method of data collection given above describe an experiment or an observational study? Oa. observational study O b. experimental study