A Company Conducted a Single Sample of a Time Study

Multiple Choice

A company conducted a single sample of a time study for 10 cycles of a job and if the average cycle time was 0.60 minutes,and the standard deviation of the sample was 0.075 minutes,for the company to be 95% confident that the average time computed for the time study is within 5% of the true average cycle time,the time study would need to encompass

A) 16 cycles
B) 20 cycles
C) 24 cycles
D) 32 cycles