The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distributed random variable with a mean of u = 23.50 mpg and a standard deviation of o= 2.50 mpg. (a) What is the standard error of the mean from a random sample of 25 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of (b) Within what interval would you expect the sample mean to fall, with 98 percent probability? (Round your answers to 4 decimal places.) The interval is from to

The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distributed random variable with a mean of u = 23.50 mpg and a standard deviation of o= 2.50 mpg. (a) What is the standard error of the mean from a random sample of 25 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of (b) Within what interval would you expect the sample mean to fall, with 98 percent probability? (Round your answers to 4 decimal places.) The interval is from to

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a
normally distributed random variable with a mean of u = 23.50 mpg and a standard deviation of o = 2.50 mpg.
(a) What is the standard error of
, the mean from a random sample of 25 fill-ups by one driver? (Round your answer to 4 decimal places.)
Standard error of
(b) Within what interval would you expect the sample mean to fall, with 98 percent probability? (Round your answers
to 4 decimal places.)
The interval is from
to

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