Martinakom

Not Rated (0)

$12/per page/Negotiable

About Martinakom

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Accounting,Applied Sciences See all
Accounting,Applied Sciences,Architecture and Design,Biology,Business & Finance,Calculus,Chemistry,Computer Science,Geology Hide all
Teaching Since: Jul 2017
Last Sign in: 306 Weeks Ago, 2 Days Ago
Questions Answered: 5023
Tutorials Posted: 5024
Category > Math Posted 27 Sep 2017 My Price 7.00

We have a huge amount of data showing that the mean acceleration time (0 to 60 miles per hour) is 10.2 seconds when using regular unleaded gasoline.

We have a huge amount of data showing that the mean acceleration time (0 to 60 miles per hour) is 10.2 seconds when using regular unleaded gasoline. Now suppose that we make 41 such tests using premium unleaded gasoline because we want to find out whether premium unleaded gasoline gives us a reduction (improvement) in mean acceleration time. The sample mean acceleration for this group turns out to be 9.7 seconds with sample standard deviation of 2.1 seconds. Go to http://davidmlane.com/hyperstat/, an online statistics text, to answer the following questions related to Mr. James's problem. Use your knowledge to answer the following questions:

 

  • What is the hypothesis of interest in this question?
  • Would you recommend a Z-test or t-test? Give a reason for your answer.
  • What is the value of the test statistic for this test?
  • What is the distribution of the test statistic you mentioned in the last question?
  • Perform the test by first computing the p value for the test.
  • Why is a one-sided test better than a two-sided test in this situation
  • Can you change the situation so that a two-sided test would be appropriate and a one-sided test would not be appropriate?

Answers

Martinakom
Not Rated (0)
Status NEW Posted 27 Sep 2017 03:09 AM My Price 7.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- Â-----------  -----------Tha-----------nk -----------you----------- fo-----------r y-----------our----------- in-----------ter-----------est----------- an-----------d b-----------uyi-----------ng -----------my -----------pos-----------ted----------- so-----------lut-----------ion-----------. P-----------lea-----------se -----------pin-----------g m-----------e o-----------n c-----------hat----------- I -----------am -----------onl-----------ine----------- or----------- in-----------box----------- me----------- a -----------mes-----------sag-----------e I----------- wi-----------ll -----------be -----------qui-----------ckl-----------y

Not Rated(0)
Relevent Questions