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Maths Stats Papers

Maths Summer Y13

QuestionAnswer
Define mu in hypothesis test
'Insufficient evidence to SUGGEST'
Talking about effect on correlation Talk about r being closer to -1, 0, or 1
Probability space grid thing Each square isnt equal in most cases. Instead the only purpose is knowing which square probabilities to work out.
Really high n binomial Can do normal approx instead
Stating inverse binomial Show the one above and below the critical value If Q is >, then don't use the calculator's >= without adjusting
On 1-Var, which standard deviation to use sx not sigmax
Graph of data. Finding max values of x/y Each point has its own x/y. Use lines to see the highest/lowest. This Q was asking for the boundary values, which were technically the least extreme in each cluster
Why negative correlation difficult to be confident in from a graph with 2 clusters of data Mention 2 clusters each have no negative correlation within them so conclusion of negative correlation misleading
Explaining why areas with certain demographics chosen Explicitly state 'high proportion of 18-24s in the region'
Created by: Pyrogearos2
 

 



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