Question 1050279
Ho: p = 0.19  and 
Ha: p > 0.19
sample proportion = .2 
{{{z =blue (x - mu)/sqrt(blue(p(1-p)/n))}}}
test stat: {{{z =blue (.20 - .19)/sqrt(blue(.20(.80)/16))}}} = .1
p-value = P(z < .1) = .5398