Written for NCEA Level 1 2024 Curriculum

Authors : Geoff Ackerley, Katy Thorne

Total of 5 Credits - Internally Assessed

Sigma Statistics Workbook 'AS 1.1 Comparison Investigation Multivariate Data’ is a write-on student resource.

This book contains notes, questions and practice investigations using Multivariate Data as part of the Comparison Investigation for 1.1 Statistical Enquiry Process. A Comparison Investigation is one of the four options for the assessment of this standard, the other options are: Relationship Investigation, Time Series Investigation and Experimental Probability Investigation. This standard is internally assessed and is worth 5 credits.

Students are able to and encouraged to use appropriate technology, such as graphing calculators/software  in their learning and assessment for this standard.

In this workbook students will find clear explanations and detailed worked examples showing what is required at each step of the statistical enquiry cycle. At the end of the workbook there are Practice Investigations. 

A full set of answers is included, which acts as a guide to structuring quality answers. An abbreviated version of the Achievement Criteria and Explanatory Notes of the Achievement Standard itself complete the resource. 

Topics Covered in this Workbook Include :

• Define the Problem     
• Plan the Investigation      
• Data Display   
• Measures of Centre and Spread   
• Gathering Evidence  
• Box-and-Whisker Plots   
• Comparing the Samples 
• Statistical Inference  
• Forming a Conclusion 
• Multivariate Statistical Vocabulary
• Practice Investigations        

The Sigma Workbook 'AS 1.1 Multivariate Data' is best bought before the standard is taught at school and used throughout the topic as a classroom and homework resource. Alternatively, the workbook would make an excellent independent study resource in the lead-up to the internal assessment of Achievement Standard 1.1.

Once completed, 'AS 1.1 Multivariate Data' provides a useful set of revision notes at assessment time. It can be kept as a reference book if students intend taking a Year 12 Statistics course.