MATLAB: An Introduction with Applications
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Transcribed Image Text:A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly
selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below.
Height (cm) of President
Height (cm) of Main Opponent 178 181 171 167 183 177
184 170 178
174 203 166 9
a. Use the sample data with a 0.05 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have
a mean greater than 0 cm.
In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height
minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test?
Họ: Ha
cm
H1: Hd
cm
(Type integers or decimals. Do not round.)
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