100% Original, Plagiarism Free, Tailored to your instructions

Order Now!

Companies often develop and test hypotheses about their products. Regulatory and consumer protection groups must also test claims resulting from hypotheses used to promote products.
Submit a 1- to 2-page paper that addresses the following:
Assume you are working at the Consumer Protection Agency. Recently, you have been getting complaints about the highway gas mileage of a new minivan. The car company agrees to allow you to select randomly 41 of its new minivans to test their highway mileage. The company claims that its minivans get 28 miles per gallon on the highway. Your test results show a sample mean of 26.7 and a sample standard deviation of 4.2.
Part 1 (Confidence Interval):
Calculate a 95% confidence interval around your sample mean.
Is the claimed mean inside your confidence interval?
What does your result mean, in terms of the company’s claim?
Part 2 (Two-tail test):
List the null and alternative hypotheses for the appropriate test.
Use alpha = 0.05. Find the critical value(s) and calculate the observed value of the test statistic.
Is the observed test statistic in the critical (rejection) region?
Will the p-value be higher or lower than your alpha? What does this result mean, in terms of the company’s claim?
Part 3 (One-tail test):
List the null and alternative hypotheses for the test.
Use alpha = 0.05.
Find the critical value and calculate the observed value of the test statistic.
Is the observed test statistic in the critical region??
Will the p-value be higher or lower than your alpha?
What does this result mean, in terms of the company’s claim?
Part 4 (Conclusion):
What conclusions did you reach?
What did you learn from each method of checking the claim for means?
Were there important differences between methods? Which method would you prefer?
Which carries a higher risk of a type I error?
Based on this experience, why do you think it’s important to decide on the method?before conducting the test?
Based on your results, do you support the company’s claim?
What action, if any, should the company take?
Note: The 1- to 2-page requirement does not include the graphs you prepare for this Assignment. Embed the graphs you create in the Word document with your written responses to the questions. Drawings may be hand-drawn and either scanned or photographed, or they may be drawn using Minitab or other statistical drawing packages.

Our Service Charter

  1. Excellent Quality / 100% Plagiarism-Free

    We employ a number of measures to ensure top quality essays. The papers go through a system of quality control prior to delivery. We run plagiarism checks on each paper to ensure that they will be 100% plagiarism-free. So, only clean copies hit customers’ emails. We also never resell the papers completed by our writers. So, once it is checked using a plagiarism checker, the paper will be unique. Speaking of the academic writing standards, we will stick to the assignment brief given by the customer and assign the perfect writer. By saying “the perfect writer” we mean the one having an academic degree in the customer’s study field and positive feedback from other customers.
  2. Free Revisions

    We keep the quality bar of all papers high. But in case you need some extra brilliance to the paper, here’s what to do. First of all, you can choose a top writer. It means that we will assign an expert with a degree in your subject. And secondly, you can rely on our editing services. Our editors will revise your papers, checking whether or not they comply with high standards of academic writing. In addition, editing entails adjusting content if it’s off the topic, adding more sources, refining the language style, and making sure the referencing style is followed.
  3. Confidentiality / 100% No Disclosure

    We make sure that clients’ personal data remains confidential and is not exploited for any purposes beyond those related to our services. We only ask you to provide us with the information that is required to produce the paper according to your writing needs. Please note that the payment info is protected as well. Feel free to refer to the support team for more information about our payment methods. The fact that you used our service is kept secret due to the advanced security standards. So, you can be sure that no one will find out that you got a paper from our writing service.
  4. Money Back Guarantee

    If the writer doesn’t address all the questions on your assignment brief or the delivered paper appears to be off the topic, you can ask for a refund. Or, if it is applicable, you can opt in for free revision within 14-30 days, depending on your paper’s length. The revision or refund request should be sent within 14 days after delivery. The customer gets 100% money-back in case they haven't downloaded the paper. All approved refunds will be returned to the customer’s credit card or Bonus Balance in a form of store credit. Take a note that we will send an extra compensation if the customers goes with a store credit.
  5. 24/7 Customer Support

    We have a support team working 24/7 ready to give your issue concerning the order their immediate attention. If you have any questions about the ordering process, communication with the writer, payment options, feel free to join live chat. Be sure to get a fast response. They can also give you the exact price quote, taking into account the timing, desired academic level of the paper, and the number of pages.

Excellent Quality
Zero Plagiarism
Expert Writers

Instant Quote

Single spaced
approx 275 words per page
Urgency (Less urgent, less costly):
Total Cost: NaN

Get 10% Off on your 1st order!