In the 19th Century, Venereal Diseases Were the Major Preventable

Essay

In the 19th Century, venereal diseases were the major preventable diseases strikingsoldiers far from home. During the American Civil War, the United States Army keptrecords on soldiers diagnosed with syphilis and gonorrhea. An analysis of theincidence of these diseases for a sample of months is presented below. (Incidencerate is the number of cases per 100,000 soldiers.)Summary statistics from Regression AnalysisIncidence of syphilis and gonorrhea forthe years 1861 - 1865
a) For a month with an incidence rate for Syphilis that is one standard deviation abovethe mean rate, what would be the predicted incidence rate for gonorrhea?

b) What proportion of the variability in the gonorrhea incidence rate is accounted for bysyphilis incidence rate?

c) Suppose you are asked to assess the accuracy of the prediction of the gonorrheaincidence rate. What information above could be used to answer this question?