Module 2: Practical Assignment Psychology Coursework (Coursework Sample)
Module 2: Practical Assignment
 Four friends take an IQ test. Their scores are 96, 99, 113, 136. Which of the following statements is true? (1 pt)
 The mean is 111.
 The mean is 106.
 The median is 111.
 The median is 106.
a) I only
b) II only
c) Both I and IV
d) Both II and III
e) None is true
 Which of the following statements are true? (1 pt)
 All variables can be classified as quantitative or categorical variables.
 Quantitative variables can be discrete variables.
 Categorical variables can be continuous variables.
a) I only
b) II only
c) III only
d) I and II
e) I and III
 The state police, using radar, checked the speeds (in mph) of 30 passing motorists at a checkpoint. The results are listed below: (2.5 pts)
43 38 42 50 26 36 43 42 41 47
35 40 37 34 43 29 45 45 39 28
52 41 67 36 35 40 33 52 48 32
Calculate the following descriptive statistics for the set of data above (#3):
a) Mean
b) Median
c) Mode
d) Range
e) Standard Deviation (SD; round to two decimal places)
 Every year, 50,000 runners compete in the Peachtree Road Race. They run 10 kilometers (a little over 6 miles). The average finishing time is 52 minutes, with a standard deviation of 9 minutes. Fred and Wilma completed the race in 61 and 48 minutes, respectively. Barney and Betty had finishing times with zscores of 0.3 and 0.7, respectively. (1 pt)
List the runners in order, starting with the fastest runner and ending with the slowest runner.
a) Wilma, Betty, Fred, Barney
b) Barney, Wilma, Fred, Betty
c) Wilma, Barney, Betty, Fred
d) Barney, Fred, Betty, Wilma
e) None of the above
 Each year, a national achievement test is administered to 4^{th} graders. The test has a mean score of 100 and a standard deviation of 15. If Jane's zscore is 0.6, what was her score on the test? (1 pt)
a) 60
b) 77.5
c) 86.5
d) 91
e) 109
 Molly earned a score of 920 on a national achievement test. The mean test score was 825 with a standard deviation of 100. What proportion of students had a higher score than Molly? (Assume that test scores are normally distributed.) (1 pt)
a) 0.08
b) 0.17
c) 0.23
d) 0.64
e) 0.90
 IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual’s IQ score is found to be 121. What is the zscore corresponding to this value? Round to two decimal places. (1 pt)
 Jake needs to score in the top 10% in order to earn a physical fitness certificate. The class mean is 82 and the standard deviation is 3.5. What raw score does he need to get that valuable piece of paper? (1 pt)
 For the following set of scores, fill in the cells (with the letters). The mean is 73 and the standard deviation is 8. (4.5 pts)
Raw Score 
z Score 
70.0 
e. 
a. 
1.7 
83.0 
f. 
b. 
1.8 
62.0 
g. 
c. 
0.5 
81.0 
h. 
d. 
1.6 
72.0 
i. 
 The following questions are based on a distribution of scores with M = 84 and the SD = 4.25. (Sometimes drawing a picture will help see what’s required.) (4 pts)
a) What is the probability of a score falling between a raw score of 76 and 82?
b) What is the probability of a score falling above a raw score of 80?
c) What is the probability of a score falling between a raw score of 86 and 88?
d) What is the probability of a score falling below a raw score of 79?
 Who is the better student, relative to his or her classmates? Here’s all the information you ever wanted to know…(4 pts)
Math 

Class Mean 
82.0 


Class Standard Deviation 
2.0 

Reading 

Class Mean 
87.0 


Class Standard Deviation 
8.0 

Raw Scores 


Math Score 
Reading Score 
Average 
Noah 
81 
92 
86.5 
Talya 
90 
82 
86 
z Scores 


Math Score 
Reading Score 
Average 
Noah 
a. 
b. 
c. 
Talya 
d. 
e. 
f. 
g. Who is the better student, relative to his or her classmates? Why?
source..Module 2: Practical Assignment
1 Four friends take an IQ test. Their scores are 96, 99, 113, 136. Which of the following statements is true? (1 pt)
* The mean is 111.
* The mean is 106.
* The median is 111.
* The median is 106.
* I only
* II only
* Both I and IV
* Both II and III
* None is true
Mean:
111
Median:
106
Sum:
444
Mean Score=Σ/n= (96+ 99+113+ 136)/ 4=44/4=111
Median= 999+113)/2=106
2 Which of the following statements are true? (1 pt)
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