STAT 211 Embry Riddle Aeronautical Statistics Discussion Question

Don't use plagiarized sources. Get Your Custom Essay on
STAT 211 Embry Riddle Aeronautical Statistics Discussion Question
Just from $13/Page
Order Essay

You are a recent graduate of Embry-Riddle Aeronautical University and have been hired by John Jolly to run and interpret a t-test. John is the owner of John’s Jolly Small Aircraft Quick Oil Change. John is experimenting with a new oil change process and is trying to determine if the current process takes more time than the new process he is experimenting with. John is comparing sample mean times to evaluate his hypothesis about the population (total number of oil changes). Over the period of a week, he took a random sample of oil changes using both the old and new processes. Using the information John provided, you ran a t-test for independent samples. These are the results (? = .05). 

t-Test: Two-Sample Assuming Unequal VarianceCurrent ProcessNew ProcessMean30.1514.20Variance234.871052614.16842105Observations2020Hypothesized Mean Difference0df21t Stat4.520032841P(T<=t) one-tail9.37197E-05t Critical one-tail1.720742903P(T<=t) two-tail0.000187439t Critical two-tail2.079613845

When you begin to share the information with John, he immediately says, “Oh my gosh, look at that p-value, it is 9! That is bad, right? What does that E-05 mean at the end of the number?” 

You know John is not reading the p-value correctly (due to his misinterpretation of the E-05 at the end of the p-value number). How will you explain the results to John?

First, watch this video to become familiar with running and interpreting a t-test in Excel.

Hypothesis Test for 2 Population Means using Excel’s Data Analysis (YouTube 5:39) (Links to an external site.)

Now, think about how you will respond to John. Answer the following questions.

  • What is the hypothesis in this scenario?
  • Did the new oil change process take less or more time? How do you know?
  • In the scenario, did you conduct a one or two-tailed test?
  • What is the p-value? (Remember to interpret what the E-05 means and round to 3 decimal places)
  • Do you think (as John does) that the result is not statistically significant?
  • Do the results “prove” anything?

My Essay Homework
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.