A group takes a Personality test of Extraversion and they all take the test. They find that the group has a mean score of 50 with a Standard Deviation of 10. Bill has a score of 32 wants to know how many standard deviations he is away from the mean. Calculate his z-score. The answer is -1.79 (with margin: -1.81)how do I calculate the Z-core?

Question
Asked Oct 24, 2019

A group takes a Personality test of Extraversion and they all take the test. They find that the group has a mean score of 50 with a Standard Deviation of 10. Bill has a score of 32 wants to know how many standard deviations he is away from the mean. Calculate his z-score. 

The answer is -1.79 (with margin: -1.81)

how do I calculate the Z-core?

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Step 1

It is given that the mean and standard dev...

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