Year 10 Statistics Coursework

1
Year 10 Statistics Coursework

• This coursework will account for 10 of your
  final grade - no matter your level of entry.
• It is important that you use all appropriate
  aspects of Data Handling that you have
  encountered.

2
Getting Started

• It is important that you carefully choose what
  you want to investigate - check whether there is
  scope to extend the investigation
• Be sure to start with your Hypothesis - what is
  it you are trying to find statistical evidence to
  support?

3
Starting The Task

• When you start the task, you must be thoroughly
  organised - preparation will ensure an orderly
  progression throughout the task

4
Guidance For Students

• The Golden Rules
• Is it interesting?
• Can I break the task into smaller parts?
• Is the Action Planning Sheet up-to-date?

• What to Include
• Action Planning Sheet
• The Completed Task
• Your Rough Work

5
Good Topics

• Test results - gender, value added etc.
• Correlation Exercises
• Well planned, detailed surveys
• Use of Statistical Models
• Analysis of data from other subjects

6
Bad Topics

• Colour of Cars
• Favourite Pop Groups
• Hair styles
• Shopping

7
Skills For The Task

• Be Systematic
• Collect and sort data
• Make and note observations as you progress
  through the task
• What statistical techniques can I use?

• By referring to your work, summarise your
  conclusions
• Remember to keep all your raw data
• Choose appropriate charts to display data, and
  justify your choice

8
Further Guidelines

• Whilst you are doing the task there are three
  distinct parts to this investigation-
• Starting The Task
• Analysing/Carrying Out The Task
• Reviewing/Validating The Task

• Starting The Task
• Whats to be done?
• Analysing/Carrying Out The Task
• Break the task into smaller parts
• Reviewing/Validating The Task
• Interpret your results, and extend the task, if
  appropriate.

9
Starting The Task

• What are you intending to find statistical
  evidence to support with this Task?
• What steps are you going to take, and in what
  order?
• Can you first simplify the Task?
• NB Before you start to collect your data, you
  must see your Tutor.

10
Doing The Task

• Pre-Test your Questionnaire to check that it is
  suitable.
• What sampling method have you used?
• Are other students needing to collect the same
  data? If so, can you work together at this stage?
• Annotate diagrams - do NOT refer to graphs
  several pages after you have done them.
• Remember to note any mini conclusions as you go
  along.

11
Reviewing The Task

• Are your results as you expected? Can you explain
  the results in terms of your original hypothesis?
• Have you included all your rough work, and can
  someone else follow what you have done?
• What problems did you encounter? How did you
  overcome them? Were there any limitations with
  your Task?
• What would you do differently, if you were doing
  it again?

12
Types of Data

• Primary Data
• This is data which you have collected yourself
• e.g. your own survey

• Secondary Data
• This is data which someone else has collected,
  and you have used
• e.g. test results

13
Sampling Techniques

• Quota Sampling
• Stratified Sampling
• Systematic Sampling
• Cluster Sampling
• Convenience Sampling

14
Sampling Techniques

• Stratified Sampling
• take a fixed percentage of each group
• Quota Sampling
• take a fixed number of each group
• Systematic Sampling
• decide on the starting point, then take every nth
  person

15
The Task

• The aim of this coursework task is to compare two
  groups/sets of data.
• You should include appropriate diagrams and
  calculations.

• After undertaking a series of statistical
  calculations you should be able to decide whether
  your original hypothesis was correct or not.

16
The Task

• How you chose your sample
• How you collected your data
• The mathematics you used
• How you have interpreted your results in terms of
  your original hypothesis
• A final overall conclusion, which encompasses ALL
  of your work

• Within your task you should be able to show some
  (or all) of the following points

17
The Task - Diagrams Calculations

• Diagrams
• These should be correct and appropriate.
• Use a variety of diagrams, and justify your
  choice.
• Calculations
• These should be correct and appropriate.
• Correct use of Measures of Location and Measures
  of Spread

18
The Task - Diagrams Calculations

• Diagrams
• Bar Charts Histograms
• Composite Bar Charts
• Cumulative Frequency Curves
• Box Plots
• Comparative Pie Charts
• Stem Leaf Diagram
• These MUST be interpreted!

• Calculations
• Mean, Mode Median
• Cumulative Frequency Interquartile Range
• Standard Deviation
• Spearmans Rank Correlation
• These MUST be interpreted!

19
Important Dates

• Coursework Given Out
• Planning Sheet Handed In
• Students Working on Task
• Review 1
• Review 2
• Final Date For Handing In

• Monday 5th February
• Monday 12th February
• Wednesday 14th February
• (data collection)
• Friday 9th March
• Friday 30th March
• Monday 9th April

20
A Refusal always .

• You will be given plenty of time - both in
  lessons and as homework- to complete this Task.
• Part of the assessment is Management - both time
  and resources.
• Therefore DO NOT ASK FOR AN EXTENSION - a refusal
  always offends!

21
Accessing This Presentation

• Log on as normal to the New Network, with your
  user name and password
• When the Topic Selector box appears, click on
  the Maths Icon - an Abacus
• When the Desktop has loaded onto your screen,
  click on statistics coursework