Question

A recycling program was introduced in 10 different districts. A researcher was interested in determining if...

  1. A recycling program was introduced in 10 different districts. A researcher was interested in determining if the amount of paper used decreased after the program was introduced. Use the 8 steps (with the appropriate t-test) to determine if the tons of paper usage decreased. (Show as much working as possible) (5 points)

Before (tons)

After (tons)

Difference

D2

22

17

5

25

9

8

1

1

16

14

2

4

37

35

2

4

58

57

1

1

78

76

2

4

58

57

1

1

27

26

1

1

38

36

2

4

28

26

2

4

Sum

371

352

19

49

Mean

37.1

35.2

1.9

4.9
Math   Statistics-And-Probability   
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