A small independent organic food store offers a variety of specialty coffees.  To determine whether price has an impact on sales, the managers kept track of how many pounds of each variety of coffee were sold last month.      PRICE PER POUND POUNDS SOLD   $ 3.99 75   $ 5.99 60   $ 7.00 65   $ 12.00 45   $ 4.50 80   $ 7.50 70   $ 15.00 25   $ 10.00 35   $ 12.50 40   $ 8.99 50       Mean $ 8.75 54.50 Standard Deviation $ 3.63 18.33 Correlation -0.927   Based on the data and summary statistics, the intercept of the estimated regression line that relates the response variable (monthly sales) to the predictor variable (price per pound) is ______________ .

A sample of 33 companies was randomly selected and data collected on the average annual bonus, turnover rate (%), and trust index (measured on a scale of 0 – 100).  Using the output below, and a significance level of α = .01, we can conclude that ________________________ .  

The scatterplot shows monthly sales figures (in units) and number of months of experience for a sample of salespeople.    The correlation between monthly sales and level of experience is most ________________________ .

A company manufacturing computer chips finds that 8% of all chips manufactured are defective. Management is concerned that high employee turnover is partially responsible for the high defect rate. To decrease the percentage of defective chips, management decides to provide additional training to those employees hired within the last year.  After training was implemented, a sample of 450 chips revealed only 27 defects.  Was is the P-value for this proportion test?

Below is a scatterplot of size of company bonuses (Y) by number of employees at the company (X) for unionized and non-unionized employees.  What does the scatterplot suggest?  

In a metal fabrication process, metal rods are produced to a specified target length of 15 feet.  Suppose that the lengths are normally distributed.  A quality control specialist collects a random sample of 16 rods and finds the sample mean length to be 14.8 feet and a standard deviation of 0.65 feet.  Which of the following statements is true?

A multiple regression model was fit to predict size of company bonuses from number of employees and unionized employees (1 = yes, 0 = no).  The resulting model was:    Based on this model, what is the annual average bonus for a company with 7500 employees that are not unionized?

Shown below is a correlation table showing correlation coefficients between stock price, earnings per share (EPS) and price/earnings (P/E) ratio for a sample of  19 publicly traded companies.  Which of the following statements is false?  

The main ideas of sampling do not include ________________________ .

A sample of 33 companies was randomly selected and data collected on the average annual bonus, turnover rate (%), and trust index (measured on a scale of 0 – 100).  According to the output is shown below, what is the estimated multiple regression model?