Question

In: Statistics and Probability

5. You want to see if smoking marijuana has any effect (positive or negative) on memory...

5. You want to see if smoking marijuana has any effect (positive or negative) on memory span. You pre-test subjects on the memory span measure, then pair up subjects who have the same memory test score.  After matching the subjects, you conduct the actual experiment. One member of each of the 15 pairs of subjects is assigned at random to smoke a marijuana cigarette; the other member of each pair is assigned to smoke a cigarette that doesn't contain any of the psychoactive ingredient in marijuana, THC (placebo). After smoking, every subject takes the memory span test again.  The results of this second test are tabled below. Test the relevant hypothesis at the alpha = .05 level.

Pair

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Marijuana

4

5

6

6

7

7

6

6

3

4

5

5

6

7

7

Placebo

5

6

7

6

9

6

5

7

5

5

6

8

7

5

6

Solutions

Expert Solution

orchestra answered 10 months ago
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