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STATS 101/101G/108 Workshops |
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First half of semester
Five different workshops covering topics in statistical concepts are held during the first half of the semester. Each is three hours long and there is plenty of time to do practical examples to check you understand the material.
No registration required - just turn up!
Please make sure you bring your calculator with you to these workshops!
Please note that workshops in italics have already been held this semester.
The sixth tab below [IS] contains resources for a self-guided session on using SPSS to do initial data entry, as well as exploratory data display, graphs and statistics.
Proportions and Proportional Reasoning
In Semester Two, 2019 this workshop was held as follows: Saturday 24 August, 9.30am-12.30pm, LibB10 (Basement of the General Library)
What's this workshop all about?
This three-hour workshop covers proportional reasoning and calculating proportions from a two-way table of counts. It is useful test preparation for the second half of Chapter 1.
Please bring your calculator!
Topics covered include extracting proportions from a table of counts including for:
- a single event
- two events occurring at the same time
- one event or another event occurring
Conditional proportions and building a two-way table of counts from a story are also covered.
Hand-out [view/annotate inline]
Scanned slides - pages 1 to 16 [view/annotate inline]
Scanned slides - pages 17 to 32 [view/annotate inline]
Here are the plots for questions 26 to 29, 33 to 35, 36 to 38 and 39- in colour! If you want a hard-copy version of these plots on a single A4 sheet of paper, print this out double-sided:
Plots from PPR handout - in colour [view/annotate inline]
Note: You may have to select landscape orientation and then choose "Flip on short edge". This will be cheaper than printing out the whole handout in colour!
Exploratory Data Analysis
In Semester Two, 2019 this workshop was held as follows: Saturday 24 August, 1-4pm, LibB10 (Basement of the General Library)
What's this workshop all about?
This three-hour workshop covers some exploratory data analysis skills useful for Stats 101/101G/108. It is excellent test preparation for the first half of Chapter 1.
Topics covered include:
- types of variables (numeric, categorical)
- tabular presentation
- measures of centre (mean, median, mode)
- measures of spread (standard deviation, interquartile range, range)
- displaying data (plots - dot/stem&leaf/box/histogram, plots - bar graph; data display - tables of counts)
Hand-out [view/annotate inline]
Scanned slides [view/annotate inline]
Here are the plots for questions 4, 5, 7, 8, 11, 12 and 13 - in colour! If you want a hard-copy version of these plots on a single A4 sheet of paper, print this out double-sided:
Plots from EDA handout - in colour [view/annotate inline]
Note: You may have to select landscape orientation and then choose "Flip on short edge". This will be cheaper than printing out the whole handout in colour!
Confidence Intervals: Means
This includes calculating CIs for one mean and for the difference between two means.
In Semester Two, 2019 this workshop was held as follows: Tuesday 3 September, 1-4pm, LibB10 (Basement of the General Library)
What's this workshop all about?
This three-hour workshop covers the (Normality-based) confidence interval, an appropriate statistical analysis for estimating the size of a single mean or a difference between two means. It is useful test preparation for Chapter 6.
Please bring your calculator!
Topics covered include calculating and interpreting:
- estimates
- t-multipliers
- standard errors
- margins of error and
- confidence interval limits
for single means and differences between two means.
Confidence Intervals: Proportions
This includes calculating CIs for one proportion and for the difference between two proportions.
In Semester Two, 2019 this workshop was held as follows: Thursday 5 September, 9.30am-12.30pm, LibB10 (Basement of the General Library)
What's this workshop all about?
This three-hour workshop covers the (Normality-based) confidence interval, an appropriate statistical analysis for estimating the size of a single proportion or a difference between two proportions. It is useful test preparation for Chapter 6.
Please bring your calculator!
Topics covered include calculating and interpreting:
- estimates
- t-multipliers
- standard errors
- margins of error and
- confidence interval limits
for single proportions and differences between two proportions.
Hand-out [view/annotate inline]
Observational Studies, Experiments, Polls & Surveys
In Semester Two, 2019 this workshop was held as follows: Saturday 14 September, 1-4pm (Basement of the General Library)
What's this workshop all about?
This three-hour workshop covers the basics about some common data collection methods. It is useful test preparation for Chapters 2 and 4.
Topics covered include:
- introduction to observational studies and experiments (including blinding, control group/s, blocking)
- introduction to polls and surveys (including sampling errors and non-sampling errors)
- random sampling (including the simple random sample [SRS])
Introducing SPSS in One Hour
If you are new to using SPSS, you may find these resources useful - just work your way through the handout in your own time using the datasets provided below.
Hand-out [view/annotate inline]
