Which of the following statements best illustrates the concept of the "level of confidence" or z value chosen in sample size formulae?
A) By setting z at 1.96 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 95 percent of the time.
B) By setting z at 1.96 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 5 percent of the time.
C) By setting z at 2.58 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 95 percent of the time.
D) By setting z at 1.96 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 99 percent of the time.
E) By setting z at 2.58 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 1 percent of the time.
Answer: A) By setting z at 1.96 it means that the manager could expect, if she conducted the survey many, many times, the value of p would fall within the sample error range 95 percent of the time.