Input the following raw scores and then calculate the corresponding z scores: 33, 47, 61, 67, 71.
What is the z score of 61?
2- Given x̄= 1,000 and s= 100 - you are taking a standardized test - what is the minimum score you need to rank in the top 5%?
Hint: X = z(s) + x̄
3- If a variable has a mean of 53, a median of 62, and a standard deviation of 4, what is its skewness?
4- You have been given the raw scores of 5.7, 7.3, 12.4, and 2.1 (x̄= 5.8 and s= 2.3). Compute the z-score for your raw score of 7.3.
5- You are given a data set for test scores that have x̄= 27 and s= 4.2. You must compute the raw score for the z-score of -2.1.
6- For the following set of raw scores, compute the z-scores on Excel:
18
19
15
20
25
31
17
35
27
22
34
29
40
33
21