1. Retention of the null hypothesis for a test of independence is to retention o

Question

1. Retention of the null hypothesis for a test of independence is to retention of the null hypothesis for a goodness- of-fit test as

a) independence is to support for the model;

b) independence is to rejection of the model;

c) dependence is to support for the model;

d) dependence is to rejection of the model.

2. Suppose your theory was that there are two genes that control a particular mental disorder. Data are gathered, a chi square is calculated and found to be larger than the tabled value. Your theory

a) has received support;

b) has suffered a setback;

c) either of the descriptive alternatives.

3. A friend brings you data that can be used to establish the independence of two variables. You run an analysis on the data and find a chi square value smaller than the tabled value. Your analysis supports the idea that the two variables

a)

are independent;

b)

are not independent;

c) either of the descriptive alternatives are correct, depending whether the calculated value is significantly smaller than the tabled value.

4. Which X2 tests whether our sample data are likely to represent the distribution of frequencies in the population when His true?

a) X2 for independence

b) X2 for goodness-of-fit

c) X2 for homogeneity of variance

d) Xfor differences between independent means

a) independence is to support for the model;

b) independence is to rejection of the model;

Explanation / Answer

1. Correct Answer: a) independence is to support for the model;

2. Correct Answer: a) has received support;

3. Correct Answer: a) a) X2 for independence

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