Quiz 9 Questions
This quiz covers the material from weeks 10 and 11 including likelihood ratio tests and
goodness of fit tests. All questions are worth 1 mark.
A professional organization wants to learn about its 12000 members and their attitudes to
the organization. Accordingly, 100 members are chosen at random from the membership
list and contacted by telephone to answer a number of questions.
One yes/no question is “Are you satisfied with the communications you receive?”
There are 61 yes answers. Is there any evidence that the proportion of members
satisfied with the communications is different from ½?
1.
The value of the discrepancy measure using a likelihood ratio test is (to two
decimals) ________
2.
The pvalue is
A:
greater than 0.1
B:
between 0.1 and 0.05
C:
between 0.05 and 0.01
D:
less than 0.01
3.
The degrees of freedom associated with the above test are ________
4.
Based on the significance test, we conclude that there is
A:
no
B:
weak
C:
some
D:
strong
evidence that the proportion of members satisfied with the
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 Spring '10
 McKay
 Statistics, Likelihood function, Statistical significance, Likelihoodratio test, Ronald Fisher

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