Question

In a court case reviewed by the Supreme Court the plaintiffs alleged that the method for selecting juries in a county in Texas was biased against Mexican Americans. For the period of time at issue, there were 181, 535 persons eligible for jury duty, of whom 143, 611 were Mexican Americans. Of the 870 people selected for jury duty, 339 were Mexican Americans.

a) What proportion of eligible jurors were Mexican Americans?

Answer 1

Proportion of eligible jurors that were Mexican Americans = p = 0.791

Explanation:

Given;

Number of persons eligible for jury duty Nt = 181,535

Number of Mexican Americans eligible for jury duty Na = 143,611

Proportion of eligible jurors that were Mexican Americans = p

p = Na/Nt

p = 143611/181535

p = 0.791