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In: Statistics and Probability

Use R-Studio to plot this PAIRED SAMPLES T-TEST To motivate citizens to conserve gasoline, the government...

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

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