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fenix001 [56]
3 years ago
6

A data mining routine has been applied to a transaction dataset and has classified 88 records as fraudulent (30 correctly so) an

d 952 as non-fraudulent (920 correctly so). Construct the classification matrix and calculate the error rate, sensitivity, and specificity.
Business
1 answer:
Ilya [14]3 years ago
5 0

Answer:

1. Classification Matrix:

Actual Class 1 0

1 30 58

0 32 920

2.Overall error rate (err) 8.65%

Accuracy% 91.35%

Explanation:

To Construct the classification matrix and to calculate the error rate

1.CONSTRUCTION OF THE CLASSIFICATION MATRIX

Classification Matrix:

Classification Confusion Matrix

Predicted Class

Actual Class 1 0

1 30 58

(88-30=58)

0 32 920

(952-920)

Calculation for the error rate

Using this formula

Overall error rate (err) = Sum of Misclassification transactions/Total transaction

Let plug in the formula

Overall error rate (err) =[(88-30)+(952-920)]/(952+88)

Overall error rate (err) = (58+32)/1040

Overall error rate (err) =0.08653*100

Overall error rate (err) = 8.65 %

Accuracy% = 1-err

Accuracy%=100%-8.65%

Accuracy%= 91.35%

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Answer:

A) $279,200

Explanation:

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Total cash collections for October = 120,800 + 52,800 + 105,600 = $279,200

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2 years ago
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Answer:

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Explanation:

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