Suppose the total time to fill a routine prescription at a local pharmacy is 35 minutes based on the time the physician places the order to the time it is dispensed.Assume the standard deviation is 11 minutes.A z score was calculated for a number,and the z score is 3.4. What is x?
A) 37.4
B) 72.4
C) 0.00
D) 68.0
E) 2.0.8

Question

Quizplus · Accepted Answer

A z-score of 3.4 means that the value of x is 3.4 standard deviations above the mean. 
z = (x - μ) / σ 
3.4 = (x - 35) / 11
Solving for x: 
x = 3.4 * 11 + 35 = 72.4
Therefore, the answer is (B) 72.4.

Suppose the Total Time to Fill a Routine Prescription at a Local