1. The following sample of observations was randomly selected

I. The following sample of observations was randomly selected. A. Positively Skewed B. Skewed to the Right (3. Negatively Skewed D. Normal Distributed 2. True or False Question {25 Points): According to the central limit theorem, When the sample size becomes larger, the standard deviation becomes smaller { }. 3. A neurologist is testing the effect of a drug on response time by injecting 121 rats with a unit dose of the drug, subjecting each to neurological stimulus, and recording its response time. The neurologist knows that the mean response time for rats not injected with the drug is 1.5 seconds. The mean of the 121 injected ratsr response time is 1.55 seconds with a sample standard deviation of [1.1 seconds. Do you think that the drug has an effect on raising the response time? And why? {Sill points)