The amount of time it takes to see a doctor a CPT-Memorial is normally distributed with a mean of 33 minutes and a standard deviation of 12 minutes. What is the Z-score for a 42 minute wait? Use the following information to find the Z- score.

⎯⎯⎯⎯⎯
X
¯
⎯⎯⎯⎯⎯
X
¯
= 82

μ

μ
= 89

σ

σ
= 1

n = 22

Round your answer to two decimal places.

Round your answer to two decimal places.

a) Z-score = 0.75

b) Z-score = -32.833

Step-by-step explanation:

Step(i):-

Given that mean of the Population = 33

Given a standard deviation of the Population = 12

Let 'X' be a random variable in a normal distribution

Let 'X' = 42

Step(ii):-

Step(iii):-

Given that mean of the Population = 89

Given a standard deviation of the Population = 1

Let 'X' be a random variable in a normal distribution

Let 'X⁻ = 82

Z-score = -32.833

35 is an outlier

step-by-step explanation: