At a certain hospital, 30% of the patients treated for a certain disease using the standard treatment methods need to be readmitted within 1 month due to a recurrence of symptoms. The hospital has recently begun using a new treatment method for treating such patients.
Suppose that 27 of 100 patients treated with the new method needed to be readmitted. At the 95% confidence level, decide whether the new treatment method has reduced the percentage of patients who need to be readmitted.
What type of test should be conducted?
A. One-sample, right tailed test of proportions
B. Two-sample, two tailed test of proportions
C. One-sample, left tailed test of independent means
D. Two-sample, left tailed test of independent means
E. One-sample, two tailed test of proportions
F. Two-sample, right tailed test of proportions
G. Two-sample, left tailed test of proportions
H. One-sample, right tailed test of independent means
I. One-sample, two tailed test of independent means
J. One-sample, left tailed test of proportions