Complete the following assignment in one MS word document:
Chapter 14–discussion question #1, #3, #4 & exercise 2
APA in-text citations) to support the work this week.
All work must be original (not copied from any source).
Text BOOK Author,
Analytics, Data Science, & Artificial Intelligence
Ramesh Sharda
Dursun Delen
Efraim Turban
Why is the IoT considered a disruptive technology?
Find information about Sophia, a robot from Hanson Robotics. Summarize her capabilities
For this discussion, you are to use the following website: https://www.census.gov/acs/www/data/data-tables-and-tools/data-profiles/2017/ (Links to an external site.)
Share your scatterplot and correlation coefficient in your post and use them to address the following in your discussion post:
Question 1
Describe, in your own words, what caused the accidents with Therac-25?
Question 2
Identify and describe 5 communication failures discussed in the article. For each failure, discuss what led to that failure happening and what could have been done to prevent it.
Some of these communication failures are obvious, but some are more subtle. Communications failures include any instance where somebody tried to transmit information to somebody else but couldn’t, regardless of the specifics.
It helps to remember that communication failures are often mediated through systems (i.e. we build things to communicate for us and these can fail to give our message when they should). For example, if I was trapped on a desert island and put a message in a bottle, that’s an attempt at communication. If the bottle sank 5 months later in a storm, that’s a communication failure.
Portfolio Project: Find a process within a business that you feel can help that business gain a competitive advantage.
Create a word document that contains at least the following:
Start by introducing the project:
* Explain the process you will be reviewing and want to modify.
* Explain the business and industry where this process exists.
* Give an overview of the current process and how it works.
Based on the materials within this course, explain a new technology that should be deployed.
* Be very specific. Note the exact technology as well as the specific application of that technology (i.e. technology might be Smart Automation – while the specific application might be light dimming technology).
* Identify the pros and cons of the new technology.
* Identify how the new technology would impact the business/industry and the process that was selected to be modified.
What are the various factors the business should consider before deploying the new technology.
* Are their cost considerations.
* What other project are impacted or might impact the deployment.
* What are 5 to 10 things the business should consider before implementing and explain how important it would be to use the new technology (i.e. use some type of scale like ‘Critical’ vs ‘High Priority’ vs … vs ‘Good to have’).
The project must be at least 3 pages in length, double-spaced, 12-font. This total length does not include the APA approved cover page and the reference page(s). There must be at least 3 APA approved references, with citations, to support your work.
1 Financial Condition of Banks. The file Banks.csv includes data on a sample of 20 banks. The “Financial Condition” column records the judgment of an expert on the financial condition of each bank. This outcome variable takes one of two possible values—weak or strong—according to the financial condition of the bank. The predictors are two ratios used in the financial analysis of banks: TotLns&Lses/Assets is the ratio of total loans and leases to total assets and TotExp/Assets is the ratio of total expenses to total assets. The target is to use the two ratios for classifying the financial condition of a new bank. Run a logistic regression model (on the entire dataset) that models the status of a bank as a function of the two financial measures provided. Specify the success class as weak (this is similar to creating a dummy that is 1 for financially weak banks and 0 otherwise), and use the default cutoff value of 0.5.
a. Consider a new bank whose total loans and leases/assets ratio = 0.6 and total expenses/assets ratio = 0.11. From your logistic regression model, estimate the following four quantities for this bank (use R to do all the intermediate calculations; show your final answers to four decimal places): the logit, the odds, the probability of being financially weak, and the classification of the bank (use cutoff = 0.5).
b. The cutoff value of 0.5 is used in conjunction with the probability of being financially weak. Compute the threshold that should be used if we want to make a classification based on the odds of being financially weak, and the threshold for the corresponding logit.
c. When a bank that is in poor financial condition is misclassified as financially strong, the misclassification cost is much higher than when a financially strong bank is misclassified as weak. To minimize the expected cost of misclassification, should the cutoff value for classification (which is currently at 0.5) be increased or decreased?
2. Competitive Auctions on eBay.com. The file eBayAuctions.csv contains information on 1972 auctions transacted on eBay.com during May–June 2004. The goal is to use these data to build a model that will distinguish competitive auctions from noncompetitive ones. A competitive auction is defined as an auction with at least two bids placed on the item being auctioned. The data include variables that describe the item (auction category), the seller (his or her eBay rating), and the auction terms that the seller selected (auction duration, opening price, currency, day of week of auction close). In addition, we have the price at which the auction closed. The goal is to predict whether or not an auction of interest will be competitive. Data preprocessing. Create dummy variables for the categorical predictors. These include Category (18 categories), Currency (USD, GBP, Euro), EndDay (Monday–Sunday), and Duration (1, 3, 5, 7, or 10 days).
a. Create pivot tables for the mean of the binary outcome (Competitive?) as a function of the various categorical variables (use the original variables, not the dummies). Use the information in the tables to reduce the number of dummies that will be used in the model. For example, categories that appear most similar with respect to the distribution of competitive auctions could be combined.
b. Split the data into training (60%) and validation (40%) datasets. Run a logistic model with all predictors with a cutoff of 0.5. c. If we want to predict at the start of an auction whether it will be competitive, we cannot use the information on the closing price. Run a logistic model with all predictors as above, excluding price. How does this model compare to the full model with respect to predictive accuracy?
d. Interpret the meaning of the coefficient for closing price. Does closing price have a practical significance? Is it statistically significant for predicting competitiveness of auctions? (Use a 10% significance level.)
e. Use stepwise selection (use function step() in the stats package or function stepAIC() in the MASS package) and an exhaustive search (use function glmulti() in package glmulti) to find the model with the best fit to the training data. Which predictors are used?
f. Use stepwise selection and an exhaustive search to find the model with the lowest predictive error rate (use the validation data). Which predictors are used?
Using the Internet, each member of your team should read at least One academically reviewed articles on Team designing. Summarize the articles in 300 words or more. Provide appropriate reference.
1.) Discuss, in your own words using 500 words or more, how virtualization may create it’s own security vulnerabilities.
Use at least three sources. Use the Research Databases available from the Danforth Library not Google. Include at least 3 quotes from your sources enclosed in quotation marks and cited in-line by reference to your reference list.
Example: “words you copied” (citation) These quotes should be one full sentence not altered or paraphrased. Cite your sources using APA format. Use the quotes in your paragaphs.
Stand alone quotes will not count toward the 3 required quotes.
2.) Using the Web or other resources, find a case where an illegal search was claimed.
Write a brief essay of 300 words describing that case and how it relates to this week’s topic.
Discuss, in your own words using 500 words or more, how business process as a service (BPaaS) reduces risk for commercial enterprises.
Cite your sources. Do not copy. Write in essay format not in bulleted, numbered or other list format.
