Concept explainers
The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be required to complete an upcoming move. This approach has proved useful in the past, but the owner has the business objective of developing a more accurate method of predicting labor hours. In a preliminary effort to provide a more accurate method, the owner has decided to use the number of cubic feet moved and the number of pieces of large furniture as the independent variables and has collected data for 36 movers in which the origin and destination were within the borough of Manhattan in New York City and the travel time was an insignificant portion of the hours worked. The data are organized and stored in moving.
a. State the multiple regression equation.
b. Interpret the meaning of the slopes in the equation.
c. Predict the mean labor hours for moving 500 cubic feet with two large pieces of furniture.
d. Perform a residual analysis on your model and determine whether the regression assumptions are valid.
e. Determine whether there is a significant relationship between labour hours and two independent variables (the number of cubic feet moved and the number of pieces of large furniture) at the 0.05 level of significance.
f. Determine the p-values in (i) and interpret their meaning.
k. Construct a 95% confidence
l. Compute and interpret the coefficients of partial determination.
m. What conclusions can you reach concerning labor hours?
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
Basic Business Statistics, Student Value Edition
- What is a carrying capacity? What kind of model has a carrying capacity built into its formula? Why does this make sense?arrow_forwardDoes Table 1 represent a linear function? If so, finda linear equation that models the data.arrow_forwardFind the equation of the regression line for the following data set. x 1 2 3 y 0 3 4arrow_forward
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage LearningGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
- Mathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,Functions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage LearningBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt