SOC202 Lab B_Part I

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University of Toronto *

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202

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Statistics

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Feb 20, 2024

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Introduction to Quantitative Research Methods Lab Assignment B: Due date, submission, and instructions Lab assignment B (lab exercises from tutorials in weeks 4 and 6) is due just after the end of the the tutorial in Week 6. Please submit an electronic copy on Quercus for all parts compiled into one document. Please read the detailed instructions about the expected content and formatting of lab assignments in the document Lab assignment instructions on Quercus. TUTORIAL WEEK 4 Learning Objectives In this tutorial you will learn: 1. How to create histograms using SPSS 2. How to calculate and interpret z-scores with SPSS Data These exercises are based on a subset of the Canadian Community Health Survey (please download the “ CCHS.sav data from Quercus, please go to the data tab on the Quercus homepage and select the Canadian Community Health Survey to download the dataset. Exercise 1 Use the variable “Number of years smoked daily ” (smkdycs). a) Create 4 histograms with different numbers of intervals: 50, 20, 10, 5. Write a sentence or two about which histogram you would use to show the distribution of this variable (explain your choice). b) Use the histogram you chose in part a): (1) How close is the distribution of the variable “Number of years smoked” to a bell -shaped normal distribution? (2) Write two to three sentences summarizing (interpreting) what this histogram tells us about the distribution of the number of years smoked among the survey respondents. Hint: Consult the codebook (in the back of the book, Appendix G) to find out for which respondents this information was collected. Exercise 2 Using SPSS Demonstration 4.2 in the textbook (at the end of Chapter 4, p. 146-147 in textbook) as a guide, compute Z scores for the variable “Number of years smoked daily” (smkdycs). a) Start by producing a table with the mean and standard deviation. Lab Assignment B: Part I
Introduction to Quantitative Research Methods b) Use the Case Summaries procedure to display the raw scores and the normalized scores for 20 cases. Write one to two sentences summarizing these results (hint: draw on the information in the table you produced for part a).
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