SUMMARY POINTs
� 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
Solutions of Chapter 19
19
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