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Build a regression for the 891 cases that have had a bankruptcy in the past. The modeling of nonbank- rupt clients suggests an initial regression model, but you should suspect that other explanatory variables may be relevant and that coefficients may be different.
(a) Motivation. Explain the purpose of the segmentation approach that models these businesses with a history of bankruptcy from the other businesses.
(b) Method. Which variables that were not available for modeling a business without a bankruptcy become relevant now?
(c) Mechanics. Following the approach used for businesses without a bankruptcy, develop a re- gression model for predicting fees for those busi- nesses with a bankruptcy. Explain why you did or did not use a test/training sample to validate the modeling.
(d) Message. Compare your model with a compa- rable model for the nonbankrupt businesses. Use examples to illustrate the differences.
A GSS asked. "What do you think is the ideal number of children for a family to have? the 497 female who responded had a median of 2, mean of 3.02 and standard deviation of 1.81 (a) Report the point estimate of the population mean.
consider an x-bar chart where the x-bar statistic is normally distributed and an associated x-bar control chart exists.
What information would we need to test the claim that the difference in monthly benefits between the two groups is greater than $30 at the 0.05 level of significance? Write out the hypotheses and explain the testing procedure.
If it has an emergency locator, what is the probability that it will not be discovered? If it does not have an emergency locator, what is the probability that it will be discovered?
a researcher wants to make a 95 confidence interval for the population proportion. what is the most conservative
Choose a person aged 19 to 25 years at random and ask, "how many times have you worked out in the past?" Call the response X for short.
the probability that any given person is allergic to a certain drug is .03. what is the probability that none of three
A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors: LifeExp (life expectancy in years), InfMort (infant mortality rate), Density (population density per square kilometer (Gr..
an airliner carries 50 passengers and has doors with a height of 70 inches. heights of men are normally distributed
If the sample standard deviation is s=10, are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a critical value of .05?
Construct frequency distribution and calculate mean, range and standard deviation - Construct control charts for variables, rejects per unit and percentage defectives per batch
Students from the class for an oral exam, what is the probability that 3 female students and 5 male students will be selected?
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