1. A negative value for a correlation indicates

a. a much stronger relationship than if the correlation were positive

b. a much weaker relationship than if the correlation were positive

c. increases in X tend to be accompanied by increases in Y

d. increase in X tend to be accompanied by decreases in Y

 

2. A Pearson correlation of r = -.85 indicates that a graph of the data would show

a. points clustered close to a line that slopes up to the right

b. points clustered close to a line that slopes down to the right

c. points widely scattered around a line that slopes up to the right

d. points widely scattered around a line that slopes down to the right

 

3. The null hypothesis for the chi-square test for goodness of fit refers to

a. the frequencies in the population

b. the proportions in the population

c. the frequencies in the sample

d. the proportions in the sample

 

4. The term observed frequencies' refers to

a. the frequencies found in the sample data

b. the frequencies found in the population being examined

c. the frequencies computed from the null hypothesis

d. the frequencies that are hypothesized for the population being examined

 

5. Which of the following most accurately describes the expected frequencies in a chi-square test?

a. They are the frequencies that are found in the sample

b. They are sample frequencies that are computed from the null hypothesis

c. They are the population frequencies that are specified by the null hypothesis

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