4. According to the US Census in 2009, only 27.4% of the adult population in the US has completed a college degree. We suspect this is larger for adults in San Francisco. We randomly select 60 adults in SF and find 45% have completed a college degree. a State the null and alternative hypotheses in words and symbolic form. Ho Ha - b. Is a normal model valid for this study? Show and/or explain. C. Find the test statistic and show your work. d. Find the p-value. e. With an alpha level of 1%, state a conclusion in context