QUESTION 1 (Classification model evaluation)
15 marks
Assume that two individuals offer to sell you their predictive models M. and M2. The
confusion matrices produced by each model are as follows.
Predicted Predicted
True
False
5
95
Actually
True
Actually
False
10
90
Performance of M.
Predicted Predicted
True False
85
15
Actually
True
Actually
False
95
5
Performance of M2
1. What is the accuracy of each model?
2. Assuming that precision is of paramount importance in your application, which of
the two models would you buy? Why?
3. Assuming that the cost of labeling as True something that is actually False far
exceeds the cost of labeling as False something that is actually True, which of the
two models would you buy? Why?

Neveready flashlights inc. needs $317,000 to take a cash discount of 3/15, net 70. a banker will loan the money for 55 days at an interest cost of $13,200. a. what is the effective rate on the bank loan? (use a 360-day year. do not round intermediate calculations. input your answer as a percent rounded to 2 decimal places.) b. how much would it cost (in percentage terms) if the firm did not take the cash discount but paid the bill in 70 days instead of 15 days? (use a 360-day year. do not round intermediate calculations. input your answer as a percent rounded to 2 decimal places.) c. should the firm borrow the money to take the discount? no yes d. if the banker requires a 20 percent compensating balance, how much must the firm borrow to end up with the $317,000? e-1. what would be the effective interest rate in part d if the interest charge for 55 days were $7,200?

Eliza works for a consumer agency educating young people about advertisements. instead of teaching students to carefully read advertisement claims, she encourages them to develop a strong sense of self and to keep their life goals and dreams separate from commercial products. why might eliza's advice make sense?

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.