A random sample of the price of gasoline from 30 gas stations in a region gives the statistics below. Complete parts a) through c).y = $3.89, s = $0.26a) Find a 95% confidence interval for the mean price of regular gasoline in that region.(Round to three decimal places as needed.)

The sample mean is 3.89, the standard deviation is 0.26 and the sample size n is 30.

Answered: A random sample of the price of…

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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A random sample of the price of gasoline from 30 gas stations in a region gives the statistics below. Complete parts a) through c). y = $3.89, s= $0.26 a) Find a 95% confidence interval for the mean price of regular gasoline in that region. (Round to three decimal places as needed.)