New

Learn smart - Learn online. Upto 88% off on courses for a limited time. View Courses

Securing Higher Grades Costing Your Pocket? Book Your Assignment at The Lowest Price Now!
loader
Add File

Error goes here

Files Missing!

Please upload all relevant files for quick & complete assistance.

Guaranteed Higher Grade!

Stuck on Your Question?

Get 24x7 live help from our Top Tutors. All subjects covered.

loader
250 words

Error goes here

Files Missing!

Please upload all relevant files for quick & complete assistance.

Students Who Viewed This Also Studied

4 Pages
STAT 404: Design and Analysis of Experiments

 The dataset, rock.dat on Canvas, contains the weights (in grams) of size rock samples (from different lakes) measured on two different scales. The purpose of this data collection is to test whet ...

Course

STAT 404

Type

Assignment

Subject

Statistics

University

The University of British Columbia

12 Pages
An Anova Test

QUIZ 3 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. Th ...

Course

STAT101

Subject

Statistics

University

University of Illinois at Chicago

Season

Fall

12 Pages
Developing Prostate Cancer

QUIZ 2 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. Th ...

Course

STAT101

Subject

Statistics

University

University of Illinois at Chicago

Season

Fall

14 Pages
Language Arts Scaled Score

QUIZ 1 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. The ...

Course

STAT101

Subject

Statistics

University

University of Illinois at Chicago

Season

Fall

CS4250 Data Visualisation and Exploratory

Question

Answered

Question:

This coursework will count for 10% of the total marks for the course, and half of the total assessed coursework marks for the course.

Learning outcome assessed

· Be able to perform open-ended exploratory analysis of data, and master the analytical presentation and critical evaluation of the results of statistical analyses.

· Be able to demonstrate practical experience of using standard graph visualisation methods and evaluation of results.

· Be able to critically assess and evaluate a visualisation.

In assignment 1, you have investigated the diamonds dataset. How could you find out using appropriate visualisations, from the diamonds dataset, whether diamonds that weigh slightly more than one carat are significantly more valuable than diamonds that weigh just less than one carat? Show your visualisations to support your answers.

This is a conceptual question. Roughly one page of A4 please, definitely not more than 2 pages, but write as carefully and precisely as you can. (This is to give you practice in answering exam-style questions.) The aim of the question is to get you thinking about the difficulties of analysing observational data (the database described below is observational), and also some of the difficulties of carrying out experiments in practice.

Read the following scenario carefully.

Imagine that you own a chain of coffee shops (such as Pret-a-Manger or Caffe Nero). You have collected a lot of sales data over several years. You are very pleased with the amount of data you have collected: it is in the form of records with the following fields (that is, a data frame with rows with the following fields) which records the following information for every item sold:

· shop : the shop where the item was sold

· date : the date the time of the transaction

· time : the time of the transaction (to within a second )

· server : the person who sold the item

· customer : customer number (known if they have a loyalty card, otherwise missing)

· item : the item that was sold

· price : the price

Each manager selects which items from the ‘menu’ to sell in his or her shop on any particular day (the staff in the shop make the sandwiches, and they can only make a limited number of different sandwiches on each day). The shops are in different types of location (stations, streets, shopping malls) and each manager selects the items that they think will sell best in their location, and on the particular day.

a) Summarising the total sales by server shows that some servers sell far more than others. Should you get rid of the servers who don’t sell much, or do you need more information? Explain carefully.

b) You suspect that some servers persuade customers to buy extra items, and so generate you more profits. Describe how you might investigate this from the data.

c) You believe that some managers are better than others, as some of the shops are much more profitable than others, and some managers change their menus more often than others. Should you sack your less profitable managers, or do you need more information? Explain carefully.

d) Could you devise an experiment to assess which managers are more competent? Describe how you might do this. Do you think the experiment is feasible?

e) Some types of sandwich have higher sales than others. Do you think it is reasonable to eliminate the sandwiches that sell least in total? Can you devise an experiment to find out whether different sandwiches sell at different rates? Would the results of this experiment directly tell you whether to stop selling some types of sandwich? (Hint: this requires careful thought!)

Find an example of a visualisation on the web which is intended to persuade you of something, or which is intended to be part of an argument. (That is, don’t choose visualisations that are really works of art with no particular purpose.) As before, please include the following in your submission:

- an image of the visualisation;

- a link to where you found the visualisation;

- a short (less than half a side of A4) discussion of what the visualisation is intended to persuade people of, whether you think it succeeds, and why. Marks will be given for:

· choice of substantial or unusual visualisation and correct description of the visualisation (30%);

· insightful critique of the visualisations (70%).

CS4250 Data Visualisation and Exploratory

Answer in Detail

Solved by qualified expert

Get Access to This Answer

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

157 More Pages to Come in This Document. Get access to the complete answer.

MyAssignmenthelp.com has gained overwhelming popularity among the students of USA for providing cheap dissertation help without hampering the quality of papers. We are one of the few dissertation service providers who offer the combination of quality and affordability. Hence, we have become most preferred dissertation help provider in Washington, D.C., New York, Chicago and many cities of America. Apart from buying dissertation online, students also can avail editing and proofreading services from us. We also boast a pool of experienced dissertation editors who handle students requests for editing and proofreading.

More CS4250 CS4250 Data Visualisation and Exploratory : Questions & Answers

Q
icon

We aren't endorsed by this University

STAT 404: Design and Analysis of Experiments

 The dataset, rock.dat on Canvas, contains the weights (in grams) of size rock samples (from different lakes) measured on two different scales. The purpose of this data collection is to test whether the two scales are different (in terms of weighing).(a) What is the most likely design used in t ...

View Answer
Q
icon

We aren't endorsed by this University

An Anova Test

QUIZ 3 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. The data set ( fish - diet.txt ) is a text file that is readable by JASP . Generally, JASP ...

View Answer
Q
icon

We aren't endorsed by this University

Developing Prostate Cancer

QUIZ 2 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. The data set ( fish - diet.txt ) is a text file that is readable by JASP . Generally, JASP ...

View Answer
Q
icon

We aren't endorsed by this University

Language Arts Scaled Score

QUIZ 1 This quiz will model much of what your task may be like when working on your own dissertation. You have been provided the data set in order to answer the research question below. The data set ( CSV - Student_Achievement_Dataset .CSV) is a Comma - Separated - Values file. Gener ...

View Answer

Content Removal Request

If you are the original writer of this content and no longer wish to have your work published on Myassignmenthelp.com then please raise the content removal request.

Choose Our Best Expert to Help You

icon

5% Cashback

On APP - grab it while it lasts!

Download app now (or) Scan the QR code

*Offer eligible for first 3 orders ordered through app!

screener
ribbon
callback request mobile
Have any Query?