Assignment #5 – Describing Data – Spring 2024
1. For the table below, fill in the missing sections for the Mean, Median, Mode, Range, and Standard Deviation on your own. For this task, round to two decimal places.
Hint: Put the data into SPSS to simplify the standard deviation calculation! Use the “Means” test under Analyze. Include the correct “options”. Then complete the five questions and transfer your answers to the quiz in Canvas. (One point per question)
Condition 1 Scores 
Condition 2 Scores 

15 
15 

12 
12 

13 
14 

13 
14 

17 
10 

19 
18 

14 
13 

17 
16 

18 
14 

13 
12 

12 
13 

18 
17 

14 
18 

14 
18 

16 
14 

Column Mean 

Column Median 

Column Mode(s) 

Standard Deviation 

Column Range 
1. The correct mean for Condition One is ______ while the correct mean for Condition Two is ______:
B. 14.83 and 15
C. 2.31 and 2.44
D. 14.53 and 15.00
E. 15.00 and 14.53
2. The correct standard deviation for Condition One is
_______ while the correct standard deviation for Condition Two is _______
A. 2.33 and 15.00
B. 2.45 and 2.33
C. 2.33 and 2.45
D. 2.36 and 14.50
E. 7 and 8
3. Which of the following is true about the mode?
A. Condition One has one mode and Condition Two has two modes.
B. Condition One has two modes while Condition Two has one mode.
C. Condition One has one mode and Condition Two has one mode.
D. Condition One has two modes and Condition Two has two modes.
Imagine you ran a ttest on this data to see if Condition One differs significantly from Condition Two. You got the following Independent Samples Test table:
4. What is the best interpretation for this twosided
tTest?
A. It was significant,
t(28) = 0.54,
p = .597
B. It was significant,
t(28) = 9.52,
p = .004
C. It was significant,
t(27.94) = 0.54,
p = .597
D. It was not significant,
t(28) = 0.54,
p = .597
E. It was not significant,
t(28) = 0.004,
p = .952
5. Use the Independent Samples Test table as well as your findings for the mean and
SDs (from questions #1 and #2) and the twosided
tTest writeup from question #3 to determine which of the following
tTest writeups is correct:
A. We ran an independent samples
tTest with score as the dependent variable and condition (1 versus 2) as the independent variable, which was significant,
t(28) = 0.54,
p = .005. Scores were significantly higher in condition 1 (
M = 15.00,
SD = 2.33) than in condition 2 (
M = 14.53,
SD = 2.45).
B. We ran an independent samples
tTest with score as the dependent variable and condition (1 versus 2) as the independent variable, which was significant,
t(27.94) = 0.54,
p = .005. Scores were significantly higher in condition 1 (
M = 15.00,
SD = 2.33) than in condition 2 (
M = 14.53,
SD = 2.45).
C. We ran an independent samples
tTest with score as the dependent variable and condition (1 versus 2) as the independent variable, which was not significant,
t(28) = 0.004,
p = .952. Scores did not differ significantly between condition 1 (
M = 15.00,
SD = 2.33) and condition 2 (
M = 14.53,
SD = 2.45).
D. We ran an independent samples
tTest with score as the dependent variable and condition (1 versus 2) as the independent variable, which was not significant,
t(28) = 0.54,
p = .597. Scores did not differ significantly between condition 1(
M = 14.53,
SD = 2.45) and condition 2 (
M = 15.00,
SD = 2.33).
E. We ran an independent samples
tTest with score as the dependent variable and condition (1 versus 2) as the independent variable, which was not significant,
t(28) = 0.54,
p = .597. Scores did not differ significantly between condition 1 (
M = 15.00,
SD = 2.33) and condition 2 (
M = 14.53,
SD = 2.45).