LEARNING OBJECTIVE: Learn the four stages of the dta handling cycle and use them to plan a data collection activity.
SUCCESS CRITERIA: You will be able to plan a the stages of a data handling exercise given an hypothesis
STARTER: Stratified Sampling Revision - Answer questions 3 & 4 from these questions
LESSON: You have 7/8 mins in your teams to decide how you would prove or disprove that:
"there are longer sentences on average in magazines aimed at males than in magazines aimed at females"
Ask some teams to read out their plans to prove or disprove this hypothesis and discuss them.
Show the data handling cycle in the IWB discuss the four stages of the data handling cycle, with reference to the above Hypothesis.
Question 1
Mary is looking at costs of different tariffs with mobile phone operators.
Put these stages of the Data Handling Cycle in the correct order.
- Mary compares the values of the means and concludes which operator is cheapest.
- Mary states the hypothesis 'Superphone is the cheapest mobile operator'.
- Mary decides to calculate the mean cost of tariffs for several operators.
- Mary collects data for the cost of various tariffs for several operators.
Question 2
- Sally wants to investigate whether food is cheaper at the supermarket at the weekend compared to with during the week.
How could she address this problem?
In your answer refer to the stages of the Data Handling Cycle.
Exam Question
Ajay wants to test this hypothesis:
"families with more income own more mp3 players"
Use the data handling cycle to write a plan for Ajay.
