Reference no: EM132387652

Assignment: 1. Last year, on one quarterly proficiency exam 15% of the students scored above average, 60% scored average, and 25% scored needs improvement. The results from the first quarter test are below. Does this exam fit the same model?

Above Average          161

Average                   700

Needs Improvement    139

TOTAL                     1000

2. The Rathus Assertiveness Schedule is a 30-item questionnaire. It was given to ten teachers that received the following scores:

16

35

0

50

18

-10

48

27

20

4

Suppose that the school offered personal development and a conducted a six-week course in assertiveness. At the end of the course, the following scores were obtained from the 10 who completed the course. Write a conclusion about the assertiveness course.

20

36

0

44

16

-6

50

28

24

8

3. In an elementary school, it was claimed that Mrs. Smith's students did substantially better than the rest of the school on a particular exam. The school had an average exam score of 79.23 while Mrs. Smith's 23 students had an average score of 82.6 with a sample standard deviation of 3. Was the higher average due to chance?

4. The same exam was given to all the students in the sixth grade, but they were divided into 4 classrooms. Each classroom had a different distraction taking place except for Room 1 that was the control group and free of noise. Using the scores ranging from 0 to 60 of the students below, state a conclusion about the nature of testing practices used.

Control	60 degrees	Classical Music	Next to Cafeteria
31	53	27	29
16	39	36	18
11	41	32	16
19	39	14	20
43	54	40	7
49	41	60	12
4	9	47	20
11	17	2	45
34	13	27	33
39	8	5	53
60	32	55	23
40	29	53	24
57	35	27	18
59	45	4	49
43	42	50	29

5. School leadership teams would like to know if there is any correlation between an athlete's grade and the number of days missed for events. Use the chart below to give your conclusion.

Grade	Classes Missed
75	2
90	4
45	8
47	4
90	1
100	0
93	1
85	0
77	5
94	6
42	6
40	7
73	4
64	5