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Data were collected on the following variables:  turnover rate, job growth, number of employees, and innovative index and fit in a model to explain Turnover Rate.  To check for the possibility of collinearity, a regression among predictor variables job growth and employees predicting a third predictor variable, innovative index, was run and was found to have an R2 = 8.8% and S=319.23. The Variance Inflation Factor (VIF) for the predictor variable Employees is ________________________.

A sample of recently trained line workers was selected to determine if there is a relationship between the number of hours of training time received by production line workers and the time it took (in minutes) for them to trouble shoot their last process problem were captured. Using the regression output is shown below, what conclusion should be made at α = .05?  

Before being released to market, a drug company tests a new allergy medication for potential side effects.  A random sample of 160 individuals with allergies was selected for the study.  The new allergy medication was randomly assigned to 80 of them, and another popular allergy medication already on the market (Brand C) was assigned to the rest.  Out of the 80 given the new allergy medication, 14 reported drowsiness; 22 of the 80 taking Brand C reported drowsiness.  The 95% confidence interval for the difference in proportions reporting drowsiness is -.028 to .228.  Which of the following statements is correct?

All else being equal, increasing the level of confidence desired will ________________________ .

Which of the following is not an assumption and/or condition required for constructing a confidence interval for the proportion?

When using a plot of residuals (y-axis) vs. fitted value of the dependent variable, a plot with no pattern indicates that the:

Data were collected on the following variables:  turnover rate, job growth, number of employees, and innovative index and fit in a model to explain Turnover Rate.  To check for the possibility of collinearity, a regression among predictor variables job growth and employees predicting a third predictor variable, innovative index, was run and was found to have an R2 = 52.5%. The Variance Inflation Factor (VIF) for the predictor variable Innovative Index is ________________________ .

Data were collected for a study investigating what factors affect the size of company bonuses.  The number of employees at the company and whether or not the employees were unionized (1 = yes, 0 = no) was included in two competing multiple regression models.  Which of the following statements is true?  

Selling price and amount spent advertising were entered into a multiple regression to determine what affects flat panel LCD TV sales.  The adjusted R2 value was reported as 83.3%.  This means that ________________________ .

Before being released to market, a drug company tests a new allergy medication for potential side effects. A random sample of 160 individuals with allergies was selected for the study.  The new allergy medication was randomly assigned to 80 of them, and another popular allergy medication already on the market (Brand C) was assigned to the rest.  Out of the 80 given the new allergy medication, 14 reported drowsiness; 22 of the 80 taking Brand C reported drowsiness.  The 95% confidence interval for the difference in proportions reporting drowsiness is -.028 to .228.  Which of the following statements is correct?