For this assignment, we use a survey on cannabis consumption in Canada. The survey was conducted in 2017 by Statistics Canada.

Description

For this assignment, we use a survey on cannabis consumption in Canada. The survey was conducted in 2017 by Statistics Canada. The dataset is saved into the file A5datai.rda, where i is the number assigned to you in Quiz 6. The dataset A5data included in the file contains 17 variables. The data was obtained through the University Library website. You click on the “file & resources” tab and choose “Statistics & numerical data”. You then click on “ODESI Data Retrieval”. ODESI stands for “Ontario Data Documentation, Extraction Service and Infrastructure”. If you like data analysis, it is a great source. To retreive the raw data, you expand “Health”, “Canada”, “Canadian Tobacco, Alcohol and Drugs Survey”, “2017” and “Dataset: Canadian Tobacco, Alcohol and Drugs Survey, 2017: Person file”, which is the survey used in this assignment. The data are in “Metadata”. Once selected, you can click on the download button on the top right of the right window. For R, you select the CSV format. It will come with a PDF in which all variables are described. You can also get the description on the website by clicking on “Variable Description” below “Metadata”. Any survey data need a little cleaning before you can use them in a regression. In this course, we don’t have time to cover it, but if you are interested, the document cleanData.R uploaded to Learn shows how to create the whole dataset. Your file is a subset of this dataset. For example, he variable CAN 010 is the answer to: “During your lifetime, have you ever used or tried marijuana?”. The possible answers are: 1- Yes, 2- No, 6- Valid Skip, 7- Don’t know, 8- Refusal, and 9- Not stated. I used that variable to create the variable “EverUsed”, which is 1 if the answer was 1 and 0 if the answer was 2. Individuals who provided other answers were removed from the sample.

 

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