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Owner: mwisser246
Created: Mar 14, 2019
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PHASE TWO: Flagler College Students on Marijuana Laws
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Introduction:

During the first phase of this project, beliefs on marijuana laws from a sample of 150 Flagler College students was analyzed. For phase two of the project, the same sample of 150 students will be divided and displayed into smaller groups. The two groups are the sample students who have smoked marijuana and the sample students who have never smoked marijuana. For this particular report, the two samples will be defined with a clear, simple phrase. The sample that has smoked marijuana will be defined as "Smoker Students" and the sample that has never smoked marijuana will be defined as "Nonsmoker Students". There are 64 Smoker Students and 86 Nonsmoker Students in this sample.

Result 1: Students Surveyed on Ever Smoking Marijuana Spring 2019   [Info]
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Students answered multiple other questions in this survey. They reported on the number of times they have smoked marijuana, how many ounces they have smoked, if they believe it is equal to alcohol or tobacco, if they support medical marijuana, if they support recreational marijuana, and if they believe it should be legal to grow small amounts of marijauna. In this report, three comparisons will be analyzed. First, a comparison between how many times students smoke and the Smoker Students and Nonsmoker Students. Then the Smoker Students and Nonsmoker Students and their belief of marijuana being equal to Alcohol. Finally, the belief of marijuana being equal to Tobacco will be compared to the Smoker Students and Nonsmoker Students. 

Comparison #1: Number of Times Students Smoked between Smoker and Nonsmoker Students

The stacked boxplots below and corresponding summary statistics display the number of times students have smoked between Smoker Students and Nonsmoker Students. This data is interesting because the Nonsmoker Students claim to have never smoked marijuana, but the graph shows that Nonsmoker Students have actually smoked up to 100 times. 

Overall, there is a major difference bewteen the reported amount of times students have smoked between the Smoker Students and Nonsmoker Students. The median number of times both Smoker Students and Nonsmoker Students have smoked marijuana is 0. There is absolutely no difference here, indicating that the majority of both of the groups have not smoked at all. The lower quartiles for both samples are also the exact same, but the upper quartiles differ drastically. The upper quartile for Nonsmoker Students is 20, while the upper quartile for Smoker Students is only at 4.5. The minimum and maximum number of times students smoked marijuana was also the same with the minimum being 0 and the maximum being 100. Both of the sample distributions had outliers. The upper fence of the sample of Smoker Students is signifcantly lower than the Nonsmoker Students. This goes against my initial inclination that the Smoker Student group would have a higher amount of times smoked than the Nonsmoker Students. In fact, the Nonsmoker Students should not have any data at all, technically, if they claim to have never smoked marijuana. Moreover, the variability of the responses is dramatically different between the two groups with the Nonsmoker Students having an IQR of 20, while the Smoker Students IQR is 4.5. Therefore, it seems that the answers of the survey for Nonsmoker Students and the number of times students have smoked marijuana is inconsistent. The number of times the Smoker Students have smoked marijuana is relatively less, with more outliers. 

Result 2: How Many Times Students Smoke between Smoker and Nonsmoker Students   [Info]
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Result 3: Summary Stats - Number of Times Students Smoke between Smoker and Nonsmoker Students   [Info]

Summary statistics for Number of Times Smoked:


Group by: Smoked Marijuana
Smoked MarijuananMinQ1MedianQ3MaxIQR
No860002010020
Yes640004.51004.5

Comparison #2: Smoker and Nonsmoker Students vs Believing Marijuana is Equal to Alcohol

The following split bar plot demonstrates the Smoker Students and Nonsmoker Students beliefs on marijuana being equal to alcohol. The graph shows that there was not a large difference in responses. Nearly 60% of both groups do not believe marijuana is equal to alcohol, while approximately 40% do believe marijuana is equal to alcohol. Regardless on if the students has ever smoked marijuana or not, most students do not believe marijuana is equal to alcohol. 

Result 4: Smoker and Nonsmoker Students vs Believing Marijuana is Equal to Alcohol   [Info]
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Comparison #3: Smoker and Nonsmoker Students vs Believing Marijuana is Equal to Tobacco

The following contingency table compares the responses of believing marijuana being equal to tobacco and the Smoker Students and Nonsmoker Students. Ultimately, 110 out of the 150 students surveyed believe that marijuana is not equal to tobacco, while only 40 reported that marijuana is equal to tobacco. With that being said, roughly 73% of the students sampled feel that marijuana is not the same as tobacco. This outcome, that the majority of students do not believe marijuana is equal to tobacco, doesn't surprise me. 

Out of the the 86 Nonsmoker Students surveyed, 63 do not feel as if marijuana is equal to tobacco. Out of the 64 Smoker Students surveyed, 47 believe that marijuana is not equal to tobacco. Out of both groups, 73% do not think marijuana is equal to tobacco, which is the same as the total overall percent. Furthermore, there is no difference between Smoker Students and Nonsmoker Students on their opinion of marijuana being equal to tobacco. 

Result 5: Contingency table - Smoker and Nonsmoker Students vs Believing Marijuana is Equal to Tobacco   [Info]

Contingency table results:


Rows: Smoked Marijuana
Columns: Equal to Tobacco
NoYesTotal
No632386
Yes471764
Total11040150

Chi-Square test:


StatisticDFValueP-value
Chi-square10.000619384250.9801

Conclusion

In this comparison of opinions between the students surveyed who have smoked marijuana (Smoker Students) and who have never smoked marijuana (Nonsmoker Students), it was discovered that the groups differed drastically in the amount of times each sample has smoked marijuana. This was interesting because some of the students reported to never having smoked marijuana, even though the graph of Nonsmoker Students showed that they reported having smoked various number of times. It was found that there was little  difference between the groups on their beliefs of marijuana being equal to alcohol and there was virtually no difference at all on their beliefs of marijuana being equal to tobacco. The majority of students (roughly 60%) do not believe marijuana is equal to alcohol, while 73% of students also do not believe marijuana is equal to tobacco. This is definitely not surprising to me. All in all, both groups tend to have smoked sometime in their lives, with the majority believing that marijuana is not equal to alcohol or tobacco. 

Data set 1. Wisser-Eaves-Sampled from Flagler College Students   [Info]
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HTML link:
<A href="https://www.statcrunch.com/5.0/viewreport.php?reportid=85885">PHASE TWO: Flagler College Students on Marijuana Laws</A>

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