Question 31
Which of the following financial statements is MOST useful in determining the capital expenditures of a company during the past year?
Question 32
What is the approximate poverty rate for the outlier in the scatterplot below?
Question 33
A high school teacher believes that the poverty rate in each U.S. state can be explained by the percentage of the population who do not have a high school diploma or equivalent. The teacher collects data from each of the 50 U.S. states; a portion of the data is given below.
Which of the following Excel dialog boxes correctly runs the regression described? A)
B)
C)
D)
Question 34
Below is a partial regression output table showing the relationship between a team's point differential and its winning percentage.(Point differential is defined as the difference between the average number of points a team scores per game and the average number of points per game scored against that team.)
Assuming a significance level of 0.01, which of the following p-values would indicate a significant relationship between the two variables?
Question 35
A study is conducted to determine what factors drive used car prices. The study initially examined two variables: the make of the car and the number of miles driven on the car. Not surprisingly, the group commissioning the study found that there was a strong relationship between these two variables and price. In an attempt to explain more of the variation in price the researcher added a thirdvariable:the car's age (in years).A prior study had shown that age was a significant factor in explaining used car selling prices. When added to the new model, however, the group found that although adding age explained more of the variation in price, age was no longer significant when combined with the car's make and miles. This problem is an example of: