EDDA TUTORIAL Week #4
1. *Text exercises
Hypertension example (p70)
Hypertension (p77)
Heart operation (p79)
2. *Discussion: Compare and contrast
risk and probability
probability and odds
Sensitivity and specificity
3. Text problems: *2.9, 3.2, *3.4

Week 2 Lab: Introduction to R and Deducer
Lab objectives: The objective of this lab is to give you a basic introduction to R and Deducer,
illustrate how to load and manipulate some data, run basic statistics and create graphs. In the
process, you will ana

Lab Week 5: Exploring sampling distributions with StatPlay
In this lab session you will learn to use StatPlay to explore your understanding of the sampling distribution of
the mean.
Introduction to StatPlay
StatPlay is a computer program for exploring sta

Week 4 Lab: Simulation and probabilities
Objectives: In this lab session you will learn how to generate simulated data for a diagnostic test and produce
relevant histograms and tables; evaluate the pmf, cdf and quantiles for arbitrary distributions. You w

Week 8 Lab: Power calculations and Sample size
Objectives: This weeks computer lab enables you calculate the required sample size for confidence
intervals (with a specified precision) and for hypothesis tests (with a specified power). You will also
learn

Week 7 Lab: Assessing Normality
Objectives: In this lab session you will: (i) explore how to assess normality using an estimated
cdf (Empirical cdf plot and Normal probability plot); (ii) explore how to assess normality using a
Quantile Quantile (QQ) plot

Week 9 Lab: Confidence intervals and hypothesis testing
for one-sample problems
Objectives: In this weeks lab session you will: learn how to obtain confidence intervals for parameters in common distributions for one-sample problems; carry out formal hypot

Week 3 Lab: Exploratory data analysis
Objectives: In this lab session you will conduct an exploratory analysis of a data set, using R. You will analyse hospital data on infectious disease and determine what variables affect the duration of hospitalisation

EDDA TUTORIAL Week #3
1. (a) Sketch a negatively skewed distribution with mean 50 and standard deviation 10.
(b) Sketch a distribution with quartiles 30, 40, 60. Is it positively or negatively skewed?
2. The following table shows differences between measu

EDDA TUTORIAL Week #2
1. Marijuana and cigarettes. A study of the effects of marijuana recruited young men
who used marijuana. Some were randomly assigned to smoke marijuana cigarettes, while
others were given placebo cigarettes. What are the flaws of thi

Lab Week 6: Confidence Intervals with StatPlay
In this weeks computer lab session you will be:
Using StatPlay to learn about confidence intervals.
Using Minitab to find confidence intervals and informally test hypotheses.
1
Producing confidence intervals