On the final examination in Engineering Data Analysis, the mean was 72

kuvitia9f

kuvitia9f

Answered question

2021-12-08

On the final examination in Engineering Data Analysis, the mean was 72 and the standard deviation was 15.
1. Determine the standard scores (z-values) of students receiving the grade of 65. 
2. Determine the standard scores (z-values) of students receiving the grade of 85 

Answer & Explanation

Laura Worden

Laura Worden

Beginner2021-12-09Added 45 answers

We know, 
μ=72 
σ=15 
1) 
The standard scores (z-values) the percentage of pupils earning a 65 is, 
z=xμσ 
=657215 

Result:
=-0.47

Jeremy Merritt

Jeremy Merritt

Beginner2021-12-10Added 31 answers

2) 
The standard scores (z-values) the percentage of pupils earning a 85 is, 
z=xμσ 
=857215 

Result:
=0.87

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