Doctors nationally believe that 72% of a certain type of operation are successful. In a certain hospital, 53 of these operations were observed, and 63% of them were successful. If , is this hospital's success
Rate different from the national average?
A) No, because the test value -0.86 is in the noncritical region.
B) Yes, because the test value -0.86 is in the critical region.
C) No, because the test value -1.46 is in the noncritical region.
D) Yes, because the test value -1.46 is in the noncritical region.

Question

Doctors nationally believe that 72% of a certain type of operation are successful. In a certain hospital, 53 of these operations were observed, and 63% of them were successful. If  , is this hospital's success
Rate different from the national average?
A) No, because the test value -0.86 is in the noncritical region. 
B) Yes, because the test value -0.86 is in the critical region. 
C) No, because the test value -1.46 is in the noncritical region. 
D) Yes, because the test value -1.46 is in the noncritical region.

Quizplus · Accepted Answer

The Answer of Doctors nationally believe that 72% of a certain type of operation are successful. In a certain hospital, 53 of these operations were observed, and 63% of them were successful. If  , is this hospital's success
Rate different from the national average?
A) No, because the test value -0.86 is in the noncritical region. 
B) Yes, because the test value -0.86 is in the critical region. 
C) No, because the test value -1.46 is in the noncritical region. 
D) Yes, because the test value -1.46 is in the noncritical region.

Doctors Nationally Believe That 72% of a Certain Type of Operation