Check the requirements for regression for the data set of actual and recorded inventory values for Aries Car Parts from Exercise 15.When the auditor examined the relationship, he noticed two outliers, for observations 1 and 25 (why are these outliers?). Careful double-checking made the auditor realize that he had misread the written records for both data points. The recorded parts inventory for observation 1 is actually $446.23, and for observation 25 is $584.04.Amend the data set accordingly, and repeat your analysis.
Answer to relevant QuestionsIf appropriate, test for evidence of a linear relationship between the actual and recorded inventory values for Aries Car Parts (using the amended data set from Exercise 16). Use α = 0.05. Check the requirements for regression for the data set of overall average marks and company test scores from Exercise 20. In exercise A large company has developed a written test to screen applicants, and the mark on this ...For the data set of odometer readings and asking price of used cars described in Exercise 6, check the requirements for regression. Would it be appropriate to use the odometer reading to predict the asking price for these ...Conduct a test of the significance of the overall model for the salaries model that includes years of postsecondary education and years of experience as explanatory variables. Test the significance of the individual ...Adjust the total income data for Example 14.5B, and analyze the new regression model that includes both per capita income and population. Is the model significant? Are both explanatory variables significant? Continue your ...
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