OC GRADUATE SCHOOL: 2013

Sunday, December 8, 2013

Output 2

SOlve and Interpret on a long bond paper. Print or save measure of central tendency your next lesson this saturday.
1. The eight best-selling paperback business books are listed. Suppose a sample of book purchases provided data:

7 habits
Motley
Millionaire
Dad
Motley
Millionaire
Motley
7 habits
Motley
Millionaire
WSJ Guide
Motley
Dad
Millionaire
Motley
7 habits
WSJ Guide
7 Habits
7 Habits
WSJ Guide
Motley
Millionaire
Dummies
Dad
7 habits
Tax Guide
Dad
WSJ Guide
Millionaire
Millionaire
Dad
Tax Guide
Millionaire
Millionaire
Dad Tax Guide
Millionaire
7 Habits
Dad
WSJ Guide
7 habits
7 habits
Dad
Millionaire
Millionaire
Dad
7 Habits
Dummies
Millionaire
Dad
Parachute
WSJ Guide
Millionaire
Motley
Dad
Motley
Dad
Millionaire
Millionaire
Dad

2. Consider the following data.
14
19
24
19
16
20
24
20
21
22
24
18
17
23
26
22
23
25
25
19
18
16
15
24
21
16
19
21
23
20
22
22
16
16
16
12
25
19
24
20
Develop a frequency distribution using classes 12 - 14, 15 - 17, 18 - 20, 21 - 23, 24 - 26
Graph
Interpret

Sunday, November 17, 2013

Output # 1

Worksheet 1:

Answer the following on a long bond paper.

What is the level of measurement for each of the following? Give your reasoning.
1. Polls asked 50 families, "Would you say you are financially better off now than you were a year ago?" The responses:
_____________
Better off 42%
worse off 29%
same 26%
no opinion 3%
_____________

2. Every 4 hours the quality control inspector at selects 100 bedsheets at random and records the intensity of the blue color. There is some latitude, but if the color is too deep, or too light, the sheet is "irregular". The irregular sheets are sold at a discount. The percentages defective for the ten checks Monday through Friday are 1%, 2%, 0%, 1%, 1%, 0%, 0%, 1%, 3% and 0%.

3. Coaching staff rated each San Miguel basketball player who participated in more than five plays in the game against Purefoods.

_____________
Rating Number of Players
Outstanding 4
Excellent 10
Good 8
Fair 5
Poor 7
_____________

4. The National Center for Education Statistics cited the following college enrollment figures in a certain university.
____________________________
Gender 1992 2000
Male 4900 5750
Female 5250 6150
____________________________

5. Answers to the even-numbered Exercises are at the back of the book. Refer to table
_________________________
Probable Field of Study Percentage
Business 25
math and physics 13
Engineering 10
Social sciences 10
Arts and humanities 9
Education 9
Biological sciences 4
Chemistry 3
Physical Sciences 2
Other 15
total 100
_____________________________

Explain your answers in a paragraph form.

Monday, September 30, 2013

final exam

Final Exam

1. How significant is the difference in the impressions of school special-services personnel, classroom teacher, and department heads on the management practices of their school administrator? Use 1% alpha.

ITEM	Personnel	Teachers	Heads
1. The applicant is likewise made aware of the disciplinary measures of erring personnel.	4.632	4.698	3.983
2. The applicant is oriented towards the practices of the organization.	4.217	4.314	4.333
3. Interviews are conducted before an applicant takes the exam.	4.823	4.783	4.799
4. Examinations play an important role in recruitment.	4.442	4.392	4.111
5. Interviews are conducted in recruiting personnel.	3.984	3.872	3.867

2. A guidance counselor believes that the pulse rates of the students likely increase before an examination. To test this claim, she randomly picked 12 first year high school students and took their pulses before an ordinary class meeting and then again before a class meeting that consisted of an examination. Use 5% of significance to test the guidance counselor’s claim.

Student	Pulse Rate Before Exam	Pulse Rate Before Ordinary Class
A	85	80
B	80	80
C	76	79
D	75	80
E	83	81
F	72	70
G	77	73
H	81	74
I	69	72
J	77	75
K	82	76
L	61	65

3. The Human Resource Department is doing a study on job satisfaction. A random sample of 310 employees were given a test that is designed to measure the level of job satisfaction. Each employee’s salary was also recorded. Use 0.05 level of significance to determine if salary and job satisfaction are independent.

Satisfaction	Under P15,000	P15,000 -25,000	Over P25,000
High	20	20	10
Medium	100	65	35
Low	40	15	5

4. Calculate the correlation of concordance of the ranks of the judges on the singing performance of 10 contestants.

Contestants	Ranks by 4 judges
Contestants	1	2	3	4
1	9	10	10	9
2	8	6	7	5
3	3	1	2	4
4	10	9	8	10
5	4	5	1	3
6	2	3	4	1
7	7	8	9	6
8	5	4	6	7
9	1	2	3	2
10	6	7	5	8

Use 0.05 alpha.

5. Twenty students are given tests in mathematical ability and abstract reasoning. The resulting scores are as follows:

Student Mathematical Ability Abstract Reasoning

1 5 7

2 12 14

3 9 11

4 11 9

5 10 10

6 8 6

7 4 3

8 6 9

9 3 4

10 8 9

11 10 11

12 7 12

13 14 13

14 17 13

15 11 14

16 14 12

17 6 10

18 10 5

19 9 7

20 8 9

6. Apply the two-way ANOVA to the following data. Use 5 percent level of significance.

Low Achievers Average Achievers High Achievers

----------------------------------------------------------------------------------------------

English 33 43 41

40 35 31

36 40 38

Filipino 36 42 48

35 43 49

37 42 37

TWO-WAY ANOVA

Two-Way ANOVA
1. Elementary Science 6 Achievement Test Score of 27 Pupils Classified According to Prior Elementary Science Achievement and Performance on a Test of Rigidity

Rigidity Tendency Prior Elementary Science Achievement

Low Achievers Average Achievers High Achievers

High Rigidity 40 53 61

42 45 51

37 50 58

Average Rigidity 46 52 58

45 53 60

47 52 57

Low Rigidity 52 54 64

53 56 64

50 59 67

Alpha = 0.01

2. Scores of 80 individuals of both sexes on an attitude scale after the administration of four different films

Males FILM

1 2 3 4

10 14 13 16

8 12 12 12

6 8 10 10

4 4 9 9

4 4 7 7

2 3 4 7

2 2 4 6

2 2 4 5

1 1 2 5

Females 14 14 10 18

12 13 10 16

12 12 10 15

10 11 9 14

8 10 9 13

6 9 7 10

4 7 7 10

2 6 6 10

2 3 5 10

1 2 4 9

Alpha = 0.05

3. Below are the scores of a group of fraternity and nonfraternity men broken down by class on a attitude scale. Analyze these data following the factorial design and make the appropriate F tests. Set alpha 0.01.

Fraternity Men

Freshmen Sophomores Juniors Seniors

12 22 26 30

8 18 20 26

10 12 18 20

6 20 16 22

8 8 10 18

Nonfraternity Men

18 20 22 24

16 18 21 22

8 12 19 16

12 18 17 18

14 16 18 24

4. Apply the two-way ANOVA to the following data. Use 5 percent level of significance.

English Low Achievers Average Achievers High Achievers

33 43 41

40 35 31

36 40 38

Filipino 36 42 48

35 43 49

37 42 37

Median Test and the Mann-Whitney Test

The median test is a non-parametric test that determines the significance of the difference between the medians of two independent groups.

1. A researcher wished to compare the effect of a treatment upon the number of correct responses on an achievement test. The experimental group received the treatment while the control group did not. The data are indicated in the table below:

Experimental Group Control Group

46 24 48 16

45 24 46 15

43 23 42 15

41 21 40 14

31 19 38 13

31 17 28 12

27 16 19 10

26 13 18 10

26 12 18 9

25 9 17 8

2. Below are the scores of a group of students who used a new teaching methodology and a group of students who were taught in traditional way. Test the hypothesis of no difference using the median test at 5% level of significance.

New Method Traditional Method

6 8 7 5

14 13 12 13

16 6 8 6

9 7 4 5

10 14 5 12

10 14

3.In the data below are two sample of scores obtained on the standardized achievement test. Apply the median test to test the hypothesis of no difference. Use 5% level of significance.

Group A Group B

47 40 30 48

35 37 32 40

30 43 33 42

40 32 35 34

25 29 46 28

Friedman Two-Way Analysis of Variance by Ranks

When the data from K matched samples are in at least an ordinal scale, the Friedman two-way of variance by ranks is used to test the null hypothesis that the K samples have been drawn from

the same population. The matched samples may be the same group of individuals who have been exposed to several conditions, or they be sets of individuals who have been matched on relevant variables and are randomly assigned to different conditions.

1. How significant is the difference in the impressions of school special services personnel, classroom teacher, and department heads on the management practices of their school administrator?

ITEM	Personnel Weighted Ave	Teachers weighted AVE	Heads Weighted Ave
1. Interviews are conducted in recruiting personnel	3.984	3.872	3.867
2. Examinations play an important role in recruitment	4.442	4.392	4.111
3. Interviews are conducted before an applicant takes the exam.	4.823	4.783	4.799
4. The applicant is oriented towards the practices of the organization.	4.217	4.314	4.333
5. The applicant is likewise made aware of the disciplinary measures of erring personnel.	4.632	4.698	3.983

2. A company’s trainees are randomly assigned to groups that are oriented on certain industrial inspection procedure by three different methods and at the end of the orientation period they are tested for inspection performance quality. The following are their scores.

Method 1	84	71	81	64	76	87
Method 2	75	72	69	74	51	62	70
Method 3	79	57	62	66	79

3. Below are the scores of three matched groups under four conditions. Test the null hypothesis using the Friedman two-way ANOVA. Alpha = 0.01

Conditions

Groups I II III IV

A 9 4 1 7

B 6 5 2 8

C 9 1 2 6