Using R to solve following questions: Using the file “PHD. The csv file has the following columns: (Download PHD.csv from here https://drive.google.

Using R to solve following questions:Using the file “PHD.csv”. The csv file has the following columns: (Download PHD.csv from here https://drive.google.com/file/d/1nAX9L9OxOulIEnF59kjzBQQT0MKJsMN3/view?usp=sharing)Column 1.Year: How many years it took the candidate to graduate with a Ph.DColumn 2.Uni: Which university the subject studied at (Berkeley, Columbia, Princeton).Column 3.Res: Residency of subject (permanent, temporary)Problem I:(a) Find the average years to graduation for the threeschools. Which school had the highest average?(b) Find the standard deviation of years to graduationfor the three schools. Which school had the lowestdeviation from the mean?(c) Did temporary or permanent residents take longerto graduate on average? Justify your answer.(d) Find the five number summary of the number ofyears it took to graduate. Do you believe the mini-mum is an outlier? Justify your answer.Problem II. Continue with the “PHD.csv” dataset.(a) Generate boxplot of years it took for the subjectsto graduate by residency. Do you believe there is asignificant difference between the groups? Explain.(b) Generate histogram of years to graduate by schoolWhich year had the most subjects in it for Prince-ton?(c) Generate mosaic plot of residency and school.Grouping by school, who had the highest proportionof temporary residents?(d) Generate mosaic plot of residency and school.Grouping by residency, who had the highest probabilityof going to Berkeley?Probkem III. Continue with the “PHD.csv” dataset. For the followingproblems, you must show results from either a plot, a table,or an aggregate command to back up your answers.(a) How may subjects were there attending Columbia?(b) How different was each schools average time to graduatecompared to the overall average?c) Were there more people who attended Berkeleyand were temporary residents, or who attendedColumbia and were temporary residents (looking atthe absolute magnitude).(d) If you were told a subject came from Princeton andwas a temporary resident, what would you estimatetheir years to graduate to be (based on only summary statistics and plots)?Download PHD.csv from here https://drive.google.com/file/d/1nAX9L9OxOulIEnF59kjzBQQT0MKJsMN3/view?usp=sharing

Give us your instructions.
Select the type of service you need: writing, calculations, or programming. We’ve created an intuitive order form that tells you what information to enter and where, so make sure to fill out each required field. Also, make your requirements as specific as possible. Don’t rush! Take your time and explain everything in detail how it works.

Proceed to checkout and enter your credit card details or PayPal login, how to pay. Follow the payment provider’s instructions to confirm the transaction.
Now your order is in our system! We’ll start processing it right away.

Place Your Order

Contact Us

Frequently asked questions
Is your service confidential?

When you place an order with our company, we ask you to provide us with such personal information as your name, phone number, and email address. We need this data to keep you updated on the important things related to your order or account.

Is there a possibility of plagiarism in my completed order?

We complete each paper from scratch and in order to make you feel safe regarding its authenticity, we check it for plagiarism before its delivery. To do that, we use our in-house software, which can find not only copy-pasted fragments but even paraphrased pieces of text. Unlike popular plagiarism detection systems that are used by most universities (e.g. Turnitin.com), we do not report to any public databases—therefore, such checking is safe.

We provide a plagiarism-free guarantee that ensures your paper is always checked for its uniqueness.

Is there a money-back guarantee? If yes, how can I receive a refund?

You can certainly get your money back in several cases. You can receive a full refund if you have paid for your order twice or if you have placed two identical orders. In case your paper was late or the quality of the paper does not correspond to your expectations, you will get compensation for these issues.

Do you keep a database of pre-written essays?

No, we do not have such a database. All papers you order from us are written from scratch. This means your paper is unique and has never been published before—neither will it be published after we deliver it to you.

 

When will my custom paper be done?

While placing an order with WritersHub, you can choose a period of time within which a paper should be delivered to you. The countdown until the specified deadline starts automatically from the moment we receive your payment in our system. For example, if you pay for your order at 6pm on Monday and choose a 3-day delivery option, you will receive your custom paper by 6pm on Thursday.

Remember that a writer needs a sufficient amount of time in order to conduct thorough research. Therefore, please choose the most suitable deadline when you place an order. Moreover, the later you need your paper to be delivered to you, the cheaper it will be. Thus, you will be able to save your money while your writer will have enough time to work on your order and ensure its quality.

Make sure you upload all the additional materials at the very beginning. If you fail to do that, the deadline for your order will be postponed as well.

I haven’t received my custom paper by the deadline. What should I do?

Let us know immediately about that. You can do it by writing a message on Facebook or email us. Our support manager will carefully examine your order and will assist you with it right away. The reasons for late delivery may vary from time to time. It can happen that you have entered a wrong email address or your spam filter does not allow you to receive emails from us. It is also possible that the writer is waiting for your reply and can not continue working without your assistance, or we are checking the work for plagiarism. Whatever the case may be, contact us if you have any problems with getting your order on time.