SOC202 Lab B_Part I
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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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Continue monitoring the process. A second ten days of data have been collected, see table labeled “2nd 10 Days of Monitoring Reservation Processing Time” in the Data File.
Develop Xbar and R charts for the 2nd 10 days of monitoring. Plot the data for the 2nd 10 days on the Xbar and R charts.
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Based on the X-bar and R Charts that you developed for the 2nd 10 days of data, is the process in control?
Group of answer choices
No. The X-bar and R Charts are both out of control.
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Now monitor the process. An additional ten days of data have been collected, see table labeled “1st 10 Days of Monitoring Reservation Processing Time” in the Data File.
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3
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Solve for the area of the shaded region. Show your work and explain the steps you used to solve.
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11 in
16 in
Use the paperclip button below to attach files.
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1:51 PM
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A formal statement of the null and alternative hypothesis for your test. Make sure to include correct statistical notation for the formal null and alternative, do not just state this in words.
Screen shots of any Excel Template pages you use.
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Please access the required materials and instructions via the link below:
https://drive.google.com/drive/folders/1A2BCDEF3GH4567IJKLMNOPQR?usp=sharing
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