Suppose the total time to fill a routine prescription at a local pharmacy averages 35 minutes starting from the time the physician places the order to the time it is dispensed.Assume the standard deviation is 11 minutes and the z score is -1.3.What is x?
A)20.7
B)0.0
C)-14.3
D)14.3
E)-20.7

Question

Quizplus · Accepted Answer

To find x, the actual time, we use the formula for a z-score: z = (x - μ) / σ, where z is the z-score, x is the value, μ is the mean, and σ is the standard deviation. Rearranging the formula to solve for x gives us x = zσ + μ. Plugging in the values, we get x = (-1.3)(11) + 35 = -14.3 + 35 = 20.7.

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