A hospital readmission is an episode when a patient who has been discharged from a hospital is readmitted again within a certain time period. Nationally the readmission rate for patients with pneumonia is 13%. A hospital was interested in knowing whether their readmission rate for pneumonia was less than the national percentage. They found 7 patients out of 60 treated for pneumonia in a two-month period were readmitted. Complete parts (a) through (d) below. - . . . a. What is p, the sample proportion of readmission? p= 0.117 (Type an integer or a decimal. Round to three decimal places as needed.) b. Write the null and alternative hypotheses. Choose the correct answer below. O A. Ho: P= 0.13 and Ha: P # 0.13 O B. Ho: P = 0.13 and Ha: P > 0.13 C. Ho: P= 0.13 and Ha: P 0.13 O E. Ho: p > 0.13 and Ha: P