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 1 year ago
Next > < Previous

Related Solutions

  You are studying the relationship between smoking and hair loss. You find a positive moderate effect...
  You are studying the relationship between smoking and hair loss. You find a positive moderate effect size. You conclude: A. there is clinical significance B. the correlation between smoking and hair loss is between -0.3 and -0.5 C.    the correlation between smoking and hair loss is between 0.3 and 0.5 D. this is a significant relationship
COVID_19 has a negative side-effect on GCC countries in terms of economy. It has a positive...
COVID_19 has a negative side-effect on GCC countries in terms of economy. It has a positive side-effect too. Explain it.
COVID_19 has a negative side-effect on GCC countries in terms of economy. It has a positive...
COVID_19 has a negative side-effect on GCC countries in terms of economy. It has a positive side-effect too. Explain it.
A study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on...
A study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on the bone mineral content of her otherwise healthy child. A sample of 24 newborns whose mothers smoked during pregnancy has mean bone mineral content (x_1 ) ̅=0.098 g/cm and s_1=0.026 g/cm; a sample of 38 infants whose mothers did not smoke has mean (x_2 ) ̅=0.095 g/cm, s_2=0.025 g/cm. Assume that the underlying population variances are equal. Are the two samples of data paired...
A study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on...
A study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on the bone mineral content of her otherwise healthy child. A sample of 90 newborns whose mothers smoked during pregnancy has mean bone mineral content 0.097 g/cm and standard deviation 0.027 g/cm; a sample of 160 infants whose mothers did not smoke has mean 0.090 g/cm and standard deviation 0.025 g/cm. Assume that the underlying population variances are equal. Conduct the test at the 0.05...
List 5 examples of negative externalities DO NOT USE ANY EXAMPLE LISTED HERE (smoking, gun control,...
List 5 examples of negative externalities DO NOT USE ANY EXAMPLE LISTED HERE (smoking, gun control, drinking, taxing, gasoline, aluminum, seat belts, people talking in class, students lying to teachers, professors who dont erase the whiteboard when done, parents who think whapping their kid is always the best and only way to discipline, bad roommates, k-12 teachers test memorization skills and suck the intellectual curiosity out of students ) discussed in either the textbook or the notes. For each example...
16. Indicate whether the following will have a positive or negative EFFECT ON CASH. A positive...
16. Indicate whether the following will have a positive or negative EFFECT ON CASH. A positive effect could also be thought of as a source of cash, an increase in cash, or a positive amount on the cash flow statement. A negative effect could also be thought of as a use of cash, a decrease in cash, or a negative amount on the cash flow statement. For an answer, either write "positive" or "negative". d. The Loss on the Sale...
16. Indicate whether the following will have a positive or negative EFFECT ON CASH. A positive...
16. Indicate whether the following will have a positive or negative EFFECT ON CASH. A positive effect could also be thought of as a source of cash, an increase in cash, or a positive amount on the cash flow statement. A negative effect could also be thought of as a use of cash, a decrease in cash, or a negative amount on the cash flow statement. For an answer, either write "positive" or "negative". d. The Loss on the Sale...
“Any single erroneous assumption can result in a negative effect where positive results were expected”. Discuss...
“Any single erroneous assumption can result in a negative effect where positive results were expected”. Discuss what is meant by this statement using clear and vivid examples of estimate and assumptions in a DCF model. Use real life examples to support your analysis.
In a restaurant that allows smoking, your consumption of cigarettes may have a negative effect on...
In a restaurant that allows smoking, your consumption of cigarettes may have a negative effect on my enjoyment of a restaurant meal. Yet you do not in any way pay for this negative effect on me. a. (5 points) From this information, decide on the type of externality your consumption creates in the market for cigarettes. Explain in detail, using words and an appropriate graph, the nature of the externality. b. (5 points) In your graph denote the magnitude of...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT