Answered: Refer to the data set of 20 randomly…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and find the proportion of presidents who were taller than their opponents. Use that result to construct a 95% confidence interval estimate of the population percentage. Based on the result, does it appear that greater height is an advantage for presidential candidates? Why or why not?

a. Construct a 95% confidence interval estimate of the percentage of presidents who were taller than their opponents.

% less than p less than %

(Round to one decimal place as needed.)

PRESIDENT
Taylor
Eisenhower
J. Kennedy
Truman
Van Buren
Garfield
F. Roosevelt
Pierce
Johnson
Coolidge
Hoover
Harrison
Jefferson
Jackson
Harrison
Reagan
Cleveland
J. Q. Adams
G. H. W. Bush
Hayes
HEIGHT
173
179
183
175
168
183
188
178
192
178
182
173
189
185
168
185
180
171
188
173
HEIGHT OPP
174
178
182
173
180
187
182
196
180
180
180
168
170
171
180
177
180
191
173
178

Expert Solution

Step 1

Given that

$s a m p l e s i z e, n = 20$

Here, we have to construct a 95% confidence interval estimate of the percentage of presidents who were taller than their opponents. From the given data, there are a total of 20 presidents and 11 have heights greater than the height of the opponent.