Answer to Question #347082 in Statistics and Probability for Amanie

Question

Mr. Ali wishes to determine if there is a significant difference in the learning abilities of the students in Statistics. He randomly selected 10 students and the following information were gathered:

Students

1

2

3

4

5

6

7

8

9

10

Pretest Scores

23

22

26

29

31

34

37

40

31

37

Posttest Scores

26

25

28

31

30

42

39

40

45

40

2. A manufacturing firm claims that the average income of their employees per day is 360 Php. A random sample of 25 employees were tested and found to have a mean daily income of 325 Php with a standard deviation of 3.6. Test the hypothesis that = 360 against the alternative < 360 using 0.05 level of significance.

Answer 1

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