A scatter plot is useful for identifying a linear relationship between the independent and dependent ...

A scatter plot is useful for identifying a linear relationship between the independent and dependent variable, but it is not particularly useful if the relationship is curvilinear.
 
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Q. 2

By combining cells we guard against having an inflated test statistic that could have led us to incorrectly accept the null hypothesis.
 
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Q. 3

In developing a scatter plot, the decision maker has the option of connecting the points or not.
 
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Q. 4

If the sample size is large, the standard normal distribution can be used in place of the chi-square in a goodness-of-fit test for testing whether the population is normally distributed.
 
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Q. 5

Both a scatter plot and the correlation coefficient can distinguish between a curvilinear and a linear relationship.
 
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Q. 6

When constructing a scatter plot, the dependent variable is placed on the vertical axis and the independent variable is placed on the horizontal axis.
 
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