53. What kind of hypothesis test will you use to analyze this dataset? (look at photo)

A program to decrease littering was carried out in four cities in California's Central Valley starting in August 2011. The amount of litter in the streets (average pounds of litter collected per block per day) was measured during July before the program started and then the next July, after the program had been in effect for a year. The results were as follows:

City	July 2011	July 2012
Fresno	9	2
Merced	10	4
Bakersfield	8	9

What kind of hypothesis test will you use to analyze this dataset?

52. What kind of hypothesis test will you use to analyze this dataset?

53. Using the .01 significance level, carry out a t test to test the experimenter's assumption that the participants' belief in the supernatural would change in some way after watching the movie.

A psychologist theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high numbers indicate greater ability) are given in the following table. Using the .05 level, do the results support the psychologist’s theory?

48. What kind of hypothesis test will you use to analyze this dataset?