The purpose of a study by a researcher was to characterize acute hepatitis A in patients more than 40 years old. They performed a retrospective chart review of 20 subjects who were diagnosed with acute hepatitis A, but were not hospitalized. Of interest was the use of age (years) to predict bilirubin levels (mg/dL). The following data were collected. Age (Years) Bilirubin (mg/dL) Age (Years) Bilirubin (mg/dL) 78 7.5 44 7.0 72 12.9 42 1.8 81 14.3 45 .8 59 8.0 78 3.8 14.1 47 3.5 48 10.9 50 5.1 46 12.3 57 16.5 42 1.0 52 3.5 58 5.2 58 5.6 52 5.1 45 1.9 (a) Prepare a scatter diagram. (b) Compute the sample correlation coefficient. (c) Test H.: p = 0 at the .05 level of significance and state your conclusions. (d) Determine the p-value for the test. (e) Construct the 95 percent confidence interval for p