Reference no: EM131008916
Used Saab prices
A linear model to predict the Price of a 2004 Saab 9-3 (in $) from its Mileage (in miles) was fit to 38 cars that were available during the week of January 11, 2008 (Kelly's Blue Book, www.kbb.com). The model was:
Price = 24,356.15 - 0.0151 Mileage.
a) What is the explanatory variable?
b) What is the response variable?
c) What does the slope mean in this context?
d) What does the y-intercept mean in this context? Is it meaningful?
e) What do you predict the price to be for a car with 100,000 miles on it?
f) If the price for a car with 100,000 miles on it was $24,000, what would the residual be?
|
Problem regarding the salary by job type
: At a small company, the head of human resources wants to examine salary to prepare annual reviews. He selects 28 employees at random with job types
|
|
Pizza sales and price
: Pizza sales and price, part 2. For the data in Exercise 31, the average Sales was 52,697 pounds (SD = 10,261 pounds), and the correlation between Price and Sales was = - 0.547.
|
|
Calculate the electric field intensity
: Field due to volume charge density. A short plastic cylinder of length L and diameter L/2 has a uniform volume charge density Pv distributed throughout its volume. Calculate the electric field intensity at P 1 , P2 , and P3 (on the axis of the cyl..
|
|
Calculate the electric field intensity in free space
: Electric field of infinite surface. Calculate the electric field intensity in free space at a distance d above an infinite plane charged with a uniform surface charge density p,. Show that the electric field intensity is independent of d and pe..
|
|
Used saab prices
: A linear model to predict the Price of a 2004 Saab 9-3 (in $) from its Mileage (in miles) was fit to 38 cars that were available during the week of January 11, 2008 (Kelly's Blue Book, www.kbb.com). The model was:
|
|
Calculate the total force one segment exerts on the other
: Electrostatic forces. Two thin, segments, each 1 m long, are charged with line charge densities of 10 nC/m and -10 nC/m and are placed a distance 10 mm apart, parallel to each other. Calculate the total force one segment exerts on the other.
|
|
Problem regarding the manufacturing
: A ceramics factory can fire eight large batches of pottery a day. Sometimes a few of the pieces break in the process. In order to understand the problem better, the factory records the number of broken pieces in each batch for three days and then ..
|
|
How does your lesson serve as motivation for learners
: How does your lesson serve as motivation for learners? How does your lesson stimulate critical thinking in your students
|
|
Calculate the force acting on the point charge
: Force on line charge density. A line charge lm long is charged with a line charge density of 1nC/m. A point charge is placed 10 mm away from its center. Calculate the force acting on the point charge if its charge equals 10 nC.
|