Trash Can Litter Removed Control Group no message 15 15 40 E

Trash Can

Litter

Removed

Control Group (no message)

15

15

40

Experimental Group (message)

20

32

54

20. What is the formula for a Chi Square contingency table calculation?

21. N =

22. What is the calculated Chi Square value?

23. What are the degrees of freedom?

24. What is the tabled value of the Chi Square problem above (p<.05)?

25. Is the result significant?

26. Was there a significant difference by type of slogan?

27. Cramer\'s phi =

28. Is this evidence of a small, medium, or large effect?

29. If you have continuous data, and are comparing three or more groups, you should use the statistic.

Solution