Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. a car company says that the mean gas mileage for i

A car company says that the mean gas mileage for its luxury sedan is at...

50.1K

Verified Solution

Question

Basic Math

image

A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 6 cars has a mean gas mileage of 20 mpg and a standard deviation of 3 mpg. At a= 0.05, test the company's claim. Assume the population is normally distributed.Which sampling distribution should be used and why?A. Use a normal sampling distribution because n > 30.B. Use a normal sampling distribution because the population is normal, and a is unknown.C. Use a normal sampling distribution because the population is normal, and o is known.D. Use a t-sampling distribution because the population is normal, and a is unknown.E. Use a t-sampling distribution because the population is normal, and o is known.F. Use a t-sampling distribution because n< 30.State the appropriate hypotheses to test.

Answer & Explanation Solved by verified expert
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Mr. John decides to start a small business with the intention to expand it in the...

Finance
Q

olying Developm imit 1 30 00 Time Left 1

Biology
Q

35 Figure shows the position time graph of an object in SHM The correct equation...

Physics
Q

A rectangular tank of mass m and charge Q over it is placed on a...

Physics
Q

4 6 points A 4 0 and B 1 2 2 Find X if 2X...

Basic Math
Q

An equivalent expression to cot(?) is:a) sec(?) - 1b) csc(?) - 1c) csc(?)+1d) sec(?) +...

Basic Math
Q

a survey 42 of the respondents stated that they talk to their pets on the...

Statistics
Q

b x 4 10 2x 10 x 3

Algebra
Q

Which of the following statements is true concerning the partnership representative (PR)? A. A PR...

Accounting
Q

True or False When...

Accounting
Q

Using the information below and on the next two pages, prepare the following as at...

Accounting
Q

On January 1, 2016 the Mahoney Company borrowed $324,000 cash from Sun Bank by issuing...

Accounting