final 4. Please see attached.

31. (5 pt) A survey found that out of 200 workers, 163 said they were interrupted three or more times an hour by phone or text messages. Find the 90% confidence interval of the population proportion of workers who are interrupted three or more times an hour. 32. (5 pt) Domino sugar packets are labeled as containing 3.5 9. Assume that those packets are actually filled with amounts that are normally distributed with a mean of 3.5869 and a standard deviation of 0.0749. What percentage of packets have less than 3.5009? Are many consumers being cheated? 33. (7 pt + extra) A researcher wants to compare three potential drugs (one currently used drug plus two potential drugs) for the treatment of hypertension (high blood pressure). What should be the experimental setup for this study? Also, what are the data the researcher should collect during the experiment? Finally, which statistical analysis should be used for this setup