The performances of a group
- Problem 1
The performances of a group of interns are evaluated by their supervisors at the end of their internships.
Their scores are: 55, 47, 62, 27, 50, 49, 66, 53, 50, 44, 63, 59.
Complete the calculations below using this data. Show all of your work and clearly label each of your calculations.
- the mean
- the median
- the range
- the standard deviation
- the variance
Copy and paste your calculations for the three problems from Excel to Word and submit one Word document with your clearly labeled calculations and interpretations.
- Problem 2
The Anxiety General Stress Test (ANGST) has been designed to gauge the level of psychological stress management trainees experience when they are under pressure.
For a random sample of trainees the scores are as follows: 47, 49, 53, 53, 54, 58, 61, 64, 75, 81.
Complete the calculations below using this data. Show all of your work and clearly label each of your calculations.
- What is the z score equivalent of ANGST = 81?
- What is the probability that someone selected at random will score 81 or lower?
- What percentage of all trainees will score between 60 and 75?