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

Other questions on the subject: Business

Business, 22.06.2019 04:30, fixianstewart

4. the condition requires that only one of the selected criteria be true for a record to be displayed.

Answers: 1

continue

Business, 22.06.2019 06:00, Bloom247

According to herman, one of the differences of managing a nonprofit versus a for-profit corporation is

Answers: 1

continue

Business, 22.06.2019 20:00, davidaagurto

If a hotel has 100 rooms, and each room takes 25 minutes to clean, how many housekeepers working 8-hour shifts does the hotel need at 50 percent occupancy?

Answers: 1

continue

Business, 22.06.2019 23:40, broang23

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut. for should be given. which businesses should cut hair? check all that apply. firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply. bobchoseanyvettethe maximum possible total surplus is

Answers: 3

continue

You know the right answer?

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