Business, 20.09.2021 20:00 caplode7497

Use the “CarsARM2.csv” data set to answer the following questions. Load the data set in Weka and construct a decision tree (J48) with the default parameters and the “Use training set” test option.
a. What is the overall prediction accuracy for this decision tree model?

b. What are the numbers of correctly and incorrectly classified instances?

c. What is the size of the tree and the number of leaves?

d. Modify the parameters to have minNumObj=25. What is the new accuracy? Comment on the

accuracy change as compared to the previous scenario.

e. What are the new numbers of correctly and incorrectly classified instances?

f. Interpret the confusion matrix.

g. Identify those attributes (if any) that do not affect a car model’s acceptable rating according

to this decision tree.

h. Estimate the acceptable rating for the following car models based on this decision tree:

Buy Maint Doors People Lugg Safety Accept

High Vhigh 2 2 Big High ?

Med Med 4 More Med High ?

Vhigh Low 5more 4 Big Low ?

Answers: 3

Show answers

Another question on Business

Business, 21.06.2019 19:20

Which of the following best explains why large companies have an advantage over smaller companies? a. economies of scale make it possible to offer lower prices. b. the production possibilities frontier is wider for a larger company. c. decreasing marginal utility enables more efficient production. d. increasing the scale of production leads to a reduction in inputs.2b2t

Answers: 1

Answer

Business, 22.06.2019 09:30

The 39 percent and 38 percent tax rates both represent what is called a tax "bubble." suppose the government wanted to lower the upper threshold of the 39 percent marginal tax bracket from $335,000 to $208,000. what would the new 39 percent bubble rate have to be? (do not round intermediate calculations. enter your answer as a percent rounded to 2 decimal places,e.g., 32.16.)

Answers: 3

Answer

Business, 22.06.2019 21:00

Kendra knight took part in a friendly game of touch football. she had played before and was familiar with football. michael jewett was on her team. in the course of play, michael bumped into kendra and knocked her to the ground. he stepped on her hand, causing injury to a little finger that later required its amputation. she sued michael for damages. he defended on the ground that she had assumed the risk. kendra claimed that assumption of risk could not be raised as a defense because the state legislature had adopted the standard of comparative negligence. what happens if contributory negligence applies? what happens if the defense of comparative negligence applies?

Answers: 2

Answer

Business, 22.06.2019 21:50

Assume that (i) setups need to be completed first; (ii) a setup can only start once the batch has arrived at the resource, and (iii) all flow units of a batch need to be processed at a resource before any of the units of the batch can be moved to the next resource. process step 1 molding 2 painting 3 dressing setup time 15 min. 30 min. no setup processing time 0.25 min./unit 0.15 min./unit 0.30 min./unit which batch size would minimize inventory without decreasing the process capacity?

Answers: 1

Answer

You know the right answer?

Use the “CarsARM2.csv” data set to answer the following questions. Load the data set in Weka and c...

Questions