Z Scores
Measures of Central Tendency & Variability (Mean, Median, Mode, Range, Variance, and Standard Deviation)
Rounding & Summation Notation
Reading/Analyzing Distributions (Positive & Negative Skewed/Normal Distribution/Etc.) & Reading/Analyzing Graphs (Bar Graphs/Histograms/Etc.)
Measurement Scales (Nominal/Ordinal/Interval/Ratio & Continuous/Discrete)
100
What is the correct formula for converting a Raw Score to a Z Score?
100
If your mean is greater than the median then this would be a negative skew.
True or False?
False, if the mean is greater than the median then this would be a positive skew.
100
Round the following to the nearest thousandths place (three places to the right of the decimal place):
79.96
79.96 or 79.960
100
What type of graph is shown below?
Histogram
100
Identify if the variable mentioned below is continuous or discrete as well as the measurement scale that should be used:
Waist Size (S, M, L)
Discrete & Ordinal
200
What is the correct formula for converting a Z Score to a Raw Score?
Bonus: What do you do if the Z Score is negative?
200
If your mean is less than the median then this would be a negative skew.
True or False?
True
200
Round the following to the nearest thousandths place (three places to the right of the decimal place):
79.9995001
80.000 or 80
200
Based on the following graph, is this a normal distribution?
Bonus: If not, what type of distribution is it?
No
Bonus: Positive Skew
200
Identify if the variable mentioned below is continuous or discrete as well as the measurement scale that should be used:
Letter Grade (A, B, C, D, or F)
Discrete & Ordinal
300
Convert x = 89 to a Z Score
Mean = 98
Standard Deviation = 10
N = 135
-0.90 or -0.9 or -.9
300
Based on the following data set, what is the Range?
97, 97, 96, 95, 97, 97, 98, 96, 95, 96, 96
3
300
Round the following to the nearest thousandths place (three places to the right of the decimal place):
79.9995000
80.000 or 80
300
Based on the following SPSS Output, how many participants participated in the following experiment?
N = 16,033
300
Identify if the variable mentioned below is continuous or discrete as well as the measurement scale that should be used:
Score Grade
Continuous & Ratio
400
Convert the following Z Score into a Raw Score: -1.2
Mean = 98
Standard Deviation = 10
N = 135
86
400
Based on the following data set, what is the Variance?
97, 97, 96, 95, 97, 97, 98, 96, 95, 96, 96
0.777
400
Based on the following data set, what is the Σx?
97, 97, 96, 95, 97, 97, 98, 96, 95, 96, 96
1,060
400
Based on the following SPSS Output, which score has the highest frequency?
Bonus: How do you come to the correct answer?
11
Bonus:
If you look at the Frequency Column next to the scores, there you will see the number of times a score appears (aka the frequency of the score). You look for the highest number, in this case "11" and see that the frequency is "2,187."
OR
If you look at the Percent Column next to the Frequency Column, there you will see the percentage of frequencies. You look for the highest number, in this case, "13.6%" and see that the frequency is "2,187" and the score for that is "11."
400
Identify if the variable mentioned below is continuous or discrete as well as the measurement scale that should be used:
Change in Speed
Continuous & Interval
500
What is the percentile of body temperature 94?
Mean = 98
Standard Deviation = 10
N = 135
Bonus: Explain how you come to your answer.
0.3446 or 34.46% or 34%
Bonus: After solving for the Z Score for "94" you find that number (-0.40) in the A Column and since the body temperature of "94" falls below the mean line of "98" we will focus on the C Column and in that column, the answer is "0.3446."
500
Based on the following data set, what is the Standard Deviation?
97, 97, 96, 95, 97, 97, 98, 96, 95, 96, 96
0.881
500
Based on the following data set, what is the Σx^2?
97, 97, 96, 95, 97, 97, 98, 96, 95, 96, 96
102,154
500
Based on the following SPSS Output, what is the relative frequency proportion of score 4?
Bonus: How do you come to the correct answer?
0.020 (After Rounding)
Bonus: You look at the Frequency Column next to the score "4", there you will see "317." You take that score and divide it by Ntot and you should get "0.0197717..." and then round to the correct answer, "0.020."
500
Identify if the variable mentioned below is continuous or discrete as well as the measurement scale that should be used:
Arm Size (in Inches)
Continuous & Ratio