From July 2013 until June 2016, IU Health treated 823 pneumonia patients, of which 146 were readmitted within 30 days for a readmission percentage of 17.7%. During the same time period, Good Samaritan Hospital in Vincennes, a town of about 18,000 in southwest Indiana, treated 710 pneumonia patients, of which 106 were readmitted within 30 days for a readmission percentage of 14.9%.

a. Do a test for 2 proportions to test the null hypothesis that there is no statistically significant difference in the readmission rates of the two hospitals. Type out all six steps (leaving space to hand draw step 3 if necessary) and insert the appropriate computer output into steps 4 and 5.

b. Give a 95% confidence interval on the difference.

c. Do a test for a single proportion to determine whether the IU Health readmission rate is different from 18.2%.

d. Give a 95% confidence interval on the IU Health readmission rate.

Answer rating: 100% (QA)

a Two proportions Z test p1 x1n1 146 823 0177 p2 x2n2 106710 0149 Test statistic Poo... View the full answer