In: Statistics and Probability
Use R-Studio to plot this PAIRED SAMPLES T-TEST
To motivate citizens to conserve gasoline, the government is considering mounting a nationwide conservation campaign. However, before doing so on a national level, it decides to conduct an experiment to evaluate the effectiveness of the campaign. For the experiment, the conservation campaign is conducted in a small but representative geographical area. Twelve families are randomly selected from the area, and the amount of gasoline they use is monitored for 1 month before the advertising campaign and for 1 month after the campaign. The following data are collected:
Family |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
Before |
55 |
43 |
51 |
62 |
35 |
48 |
58 |
45 |
48 |
54 |
56 |
32 |
After |
48 |
38 |
53 |
58 |
36 |
42 |
55 |
40 |
49 |
50 |
58 |
25 |