A work sampling method is used to determine the proportion of the time a worker is idle. The following information was gathered on a random basis.
If the manager wants a 95 percent confidence level (z = 1.96) and a degree of precision of + 0.03, how many more observations are needed?
A) fewer than or equal to 700
B) greater than 700 but fewer than or equal to 800
C) greater than 800 but fewer than or equal to 900
D) greater than 900

Question

A work sampling method is used to determine the proportion of the time a worker is idle. The following information was gathered on a random basis. 
If the manager wants a 95 percent confidence level (z = 1.96) and a degree of precision of + 0.03, how many more observations are needed?
A) fewer than or equal to 700 
B) greater than 700 but fewer than or equal to 800 
C) greater than 800 but fewer than or equal to 900 
D) greater than 900

Quizplus · Accepted Answer

The Answer of A work sampling method is used to determine the proportion of the time a worker is idle. The following information was gathered on a random basis. 
If the manager wants a 95 percent confidence level (z = 1.96) and a degree of precision of + 0.03, how many more observations are needed?
A) fewer than or equal to 700 
B) greater than 700 but fewer than or equal to 800 
C) greater than 800 but fewer than or equal to 900 
D) greater than 900

A Work Sampling Method Is Used to Determine the Proportion