A sample of 300 random adults living in the busy city revealed 63 of them favored increasing the highway speed imit from 55 to 65 mph, whereas 75 out of 180 rural residents favored the speed limit increase. Construct a 99% confidence interval for the difference of proportions.

A sample of 300 random adults living in the busy city revealed 63 of them favored increasing the highway speed imit from 55 to 65 mph, whereas 75 out of 180 rural residents favored the speed limit increase. Construct a 99% confidence interval for the difference of proportions.

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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