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.


Exploratory Data Analysis

In Semester Two, 2018 this workshop was held as follows: Tuesday 28 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)

There was one error in the answers on the hard-copy handouts provided in the workshop as follows:

29(2)            

 

 

This error has been corrected in the electronic versions of the handout and the scanned slides below:


Hand-out   [open in new window|view inline]


Scanned slides   [open in new window|view inline]

Proportions and Proportional Reasoning

In Semester Two, 2018 this workshop was held as follows: Thursday 30 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.

There were five errors in the answers on the hard-copy handouts provided in the workshop as follows:

12.(1)      13.(3)      14.(3)        

 

16.(4)      17.(2)          

 

 

These errors have been corrected in the electronic versions of the handout and the scanned slides below:


Hand-out   [open in new window|view inline]


Scanned slides   [open in new window|view inline]

Confidence Intervals: Proportions

This includes calculating CIs for one proportion and for the difference between two proportions.

 

In Semester Two, 2018 this workshop was held as follows: Saturday 1 September, 9.30am-12.30pm, LibB15 (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   [open in new window|view inline]


Scanned slides   [open in new window|view inline]

Confidence Intervals: Means

This includes calculating CIs for one mean and for the difference between two means.

 

In Semester Two, 2018 this workshop was held as follows: Saturday 1 September, 1-4pm, LibB15 (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.


Hand-out   [open in new window|view inline]


Scanned slides   [open in new window|view inline]

Observational Studies, Experiments, Polls & Surveys

In Semester Two, 2018 this workshop was held as follows: Saturday 8 September, 9.30am-12.30pm (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 error, non-sampling errors)
  • the simple random sample (SRS)


Hand-out   [open in new window|view inline]


Scanned slides   [open in new window|view inline]

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   [open in new window|view inline]

Useful data files:


GearTeeth.sav


Batteries.sav


Length_and_Weight_data.xls

 
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