” STA 3187W Homework 1, Page 1
Homework 3: (Chapters 5 7, Statistical Ethics) Due October 24th 107 Points
Non-Writing-Intensive Component
Chapter 7
(1) (6 Points) Consider a case where we wish to conduct a systematic random sample of 35 elements
from a population of size 179. You obtain a random number of 1 as your starting point, and you are to
conduct a systematic random sample from there.
(a) Determine the value of k to use in the 1-in-k Systematic Random Sample. Show all work.
(b) Provide the entire list of 35 observations in your sample.
(c) Note that element 176 would not be in your sample. Explain in 1-2 sentences why it would not be
practical to expect element 176 in your sample.
Statistical Ethics
(2) (10 Points)
Hover over the IRB Submissions Tab, and click on Types of Review.
(a) What are the three types of review categorized by IRB submissions?
Click on the Resources tab.
(b) GWU uses the CITI training program. How often must investigators and research staff undergo
continuing training from CITI Program in order to complete human subjects research?
While hovering over the Resources tab, click on Education, Outreach, Training
(c) If you would like to discuss your project in more detail, or if you are new to research at GW, you may
request a 30-minute appointment with OHR via phone or in person. (1) What is the e-mail to schedule an
appointment, and (2) what office hours are available for appointments?
Hover over the About Tab, and click FAQs:
(d) Find 2 questions that appear either interesting to you in regards to your future profession or to you
personally (aka for the heck of it). Provide the questions, provide the answers for these questions, and
explain how they might help you in the future.
Chapter 5
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