Your Practice Paper – Applications and Interpretation HL for IBDP Mathematics
� Test involving Poisson distribution : X ~ Po ( � )
H : � � �0
0
H
1: � � �0
, � � �0 x : Observed value of X P ( X � x) for H
1: � � �0 or P ( X � x) for H
1
: � � �0
: p -value under X ~ Po ( �
0)
H
0 is rejected if the p -value is less than the significance level
H
0 is not rejected if the p -value is greater than the significance level
� Test involving bivariate normal distribution :
� : Product moment correlation coefficient H
0
: � � 0
H
1: � � 0 , � � 0 ( for 1-tailed test ), � � 0 ( for 2-tailed test )
H
0 is rejected if the p -value is less than the significance level
H
0 is not rejected if the p -value is greater than the significance level
� Type I and type II errors :
� : Significance level P ( Reject H | H is true ) � � : Type I error
0 0
P ( Not reject H | H is not true ) : Type II error
0 0
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Paper 3 Analysis
� Nature of paper : Structured question
� Time allowed : 60 minutes
� Maximum mark : 55 marks
� Number of questions : 2
� Mark range per question : 25 marks to 30 marks
� Weighting : 20 % of the total mark
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