Can someone help me especially with XI please!! And I want to check if my answer
ID: 3277579 • Letter: C
Question
Can someone help me especially with XI please!! And I want to check if my answer for X is right
X. Do the data satisfy the assumptions to perform a least squares regression? (include the p-value for the normality test of residuals, and describe if the residual vs fit plot is symmetric)
The scatter is random, so the residuals do not satisfy the linear assumption
p-value is 0.630
The residual vs. fit plot is not symmetric, by looking the graph I can see the dots on the up not the same numbers of the dots on the other side.
XI. Regardless of the whether the assumptions are met; find the best fitted line that the regression came up with?
The best
Explanation / Answer
a residual plot is a graph that shows the residuals on the vertical axis and the indpeendent variable on th horizontal axes.
If the points in a residual plot are randomly dsipersed around the horizontal axis ,a linear regression model is NOT appropriate for the data.
Residual plot shows random pattern
The scatter is random, so the residuals do not satisfy the linear assumption
p-value is 0.630
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