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data程序代做、代写distributor vendors


Instructions
Objective
You own a diamond business and you have to replenish your inventory. You have $5,000,000
budgeted towards the purchase of new diamonds. You have a historical list of diamonds that
were purchased from various distributor vendors and the prices they retailed for. You also have
a list of diamonds that are currently on the market, but this list does not include any set prices.
Instead, you will place an offer for a diamond and the distributor will make a single yes-or-no
decision to sell you the diamond at that price. If your offer is accepted then you receive the
diamond and you will be awarded the difference between the retail price your company can
eventually sell the diamond for and the price that you offered as profit. If you fail to make a
purchase, you simply do not get anything for profit.
What you will return to Enova is a copy of any code used, a description of your process,
answers to the short answer questions, and the offers file with the offer column populated. The
offer column should be populated only on diamonds you wish to make an offer on, and the sum
of the offers needs to be less than or equal to $5,000,000.
Directions
You have been given two data sets. The dataset labeled “training.csv” contains historical data
regarding how much diamonds have sold for; both the retail price the diamond sells at and the
price paid to the vendor to acquire it. You can use this data to train any models you see fit to
answer the question. The second data set labeled “offers.csv” is the dataset you will provide
offers for. Note neither the retail price or the price you would need to pay is present in the offers
file.
Also included is a data dictionary explaining the fields in the datasets.
Evaluations of offers
Recall that your max budget is $5,000,000 of offers, so the total sum of your offers needs to be
less than $5,000,000. You will be charged the value of your offer even if the seller would have
been willing to sell for less (You always pay your offer if it is accepted). If your offer is rejected
for being less than the price the seller wants you pay nothing, but you don’t receive the
diamond.
Your profit will be calculated as the sum of retail price the diamonds will eventually sell for minus
the sum of your accepted offers. You make no profit on rejected offers.
Short Answer Problems
Please provide short (a paragraph or so) answers to these questions. Feel free to include any
charts or graphs that you feel help answer the questions.
1. Do you think that any of the vendors are over or under charging for diamonds compared
to the other vendors? Do you think they are selling the same kind of diamonds? How did
you come to this conclusion?
2. What is the relationship between Carat and Retail Price? Why do you think the
relationship takes this form?
Submission
A full submission contains:
• The csv of the offers dataset with your offers. The ‘id’ column must be unchanged and
included; the offers should be in the column ‘offers’. The sum of the offers must be less
than or equal to $5,000,000.
• A copy of any code used in to solve the problem.
• A brief write-up detailing what you did and why. If you feel that your code is sufficiently
documented explaining your process that will satisfy this requirement. Including graphs
and charts that helped you is a great way of showing your thoughts and process, but are
not necessary.
• Brief (a paragraph or so) answers to each of the short answer problems.
The amount of profit you make, the methodology you use, and your answers to the short
questions will be taken into account by Enova.
Scoring
We will measure the performance of your model/rules by profit. In other words, we will take
predictions from your scored data and compute the following:
∑(

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