Concept explainers
(a)
To Explain: the re-expression for the following possible residuals plots.
(a)
Explanation of Solution
Given:
By seeing the plot, it is observed that the pattern is linear, it is appropriate for the data. Therefore, re-expression of the data is not needed.
(b)
To Explain: the re-expression for the following possible residuals plots.
(b)
Explanation of Solution
Given:
By seeing the plot, it is observed that the pattern is curved. Therefore, linear model is not appropriate for the given data. So re-expression of the data is needed to making the relationship straighten.
(c)
To Explain: the re-expression for the following possible residuals plots.
(c)
Explanation of Solution
Given:
By seeing the plot, it is observed that the plot is spread. Therefore the linear model is not appropriate for the data list. So, re-expression of data is needed to making the spread equal.
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