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Forming a Research Question

 1 Research Questions and Report Introduction Review of research questions at lower levels. The report introduction needs three things: 1) Purpose of the investigation: How to background setting...the context, 'There is a belief that... or 'I want to test the claim that...' How to make a hypothesis and justify why. "I suspect that...  because" Summary of contextual research. 2) Identify variables involved: 3) Comparative Investigative Question: How to pose a related comparison investigative question: - Variable of interest, - Median - A direction is helpful (greater, taller etc) - Two groups, - The population. Notes on Introduction - what is expected, using elite athletes exemplar as an example to analyse. Practice writing questions, critiquing other peoples research questions, background setting and predictions. Student example - dolphin write up introduction Car Crash Example - Class notes student worksheet Exemplar, Elite Athletes, Data set | Assessment information Class notes Introduction Class notes Research Questions from lower levels AS1.10 and 2.9 (Link to census at school Class notes) Stats Learning Workbook Ex A pg80 IAS 3.10 pg5, 6     Check out the iNZight tips and tricks page for ideas on data manipulation before formulating a research question. Car Crash Injury Practice: Data set, csvVariable Info Google Doc & Example Report Worksheet

Pose a Research Question

AS 3.10 ‘Use statistical methods to make a formal inference’ involves showing evidence of using each component of the PPDAC statistical enquiry cycle

Prior to the Assessment you will be given the context of the assessment situation so you can research the context and gain prior knowledge.

Make a hypothesis and justify - why you think this

'I wonder if the median % fat content for Nayland Canteen Pies is greater than the median % fat content for Best Buy Pies'

'I wonder if the median (variable) from (group A, population A) tends to be bigger than the median (variable) from (group B, population B)'

'Tends' implies we are talking about the population median

'There is a belief that...' 'I want to test the claim that...

If not why not?       Then rewrite the question to correct the errors.

1) Do boys send more texts than girls at Nayland College?

2) I wonder if the fat content of all McDonald’s hamburgers is higher than KFC burgers?

3) I wonder if y9 boys tend to send more texts than girls at Nayland College

4) Do Y10 boys tend to spend more time playing sport each week than Y10 girls at Nayland College?

5) Is there a difference in the time spent on homework for boys and girls?

6) Does the amount of diesel used by trucks in Nelson tend to be greater than the amount of petrol used by cars in Nelson?

7) I wonder if the median protein% of free range eggs is greater than the median protein% of a battery caged eggs in Nelson chicken farms?