Answer:
as p decreases, sigma decreases.
Step-by-step explanation:
Given that 35%are hispanic. For a sample of 17 members
n = 17
p = 0.35
and the number of Hispanics on the committee would have the binomial distribution
a) Mean of X = E(x) = [tex]np = 17(0.35)\\= 5.95[/tex]
b) Std dev X = [tex]\sqrt{npq} =\sqrt{5.95(0.65)} \\=1.9665[/tex]
c) Here n =17 and p =0.1
[tex]Mean = 1.7\\\sigma = \sqrt{17(0.1)(0.9)} =1.234[/tex]
d) When p = 0.01
[tex]Mean = 0.17\\\sigma = 0.410[/tex]
Thus we find that as p decreases, sigma decreases.