Question 923889
 Ho: p=.70
 Ha: p > .70
....
 A random sample of 100 produced p=.67
{{{z(.67) =blue (.67 - .70)/sqrt(.70*.30/100)}}} = -.03/.0458 = -.6547
Using TI or Similarly Your Casio fx-115 ES plus 
p-value = P(z > -.6547) = normalcdf(-.6547, 100) = .7437
..........
 {{{z(.68) =blue (.68 - .70)/sqrt(.70*.30/100)}}} = -.02/.0458 = -.4364
p-value = P(z > -.4364) = normalcdf(-.4364, 100) = .6687
.........
 {{{z(.69) =blue (.69 - .70)/sqrt(.70*.30/100)}}} = -.01/.0458 = -.2183
p-value = P(z > -.2183) = normalcdf(-.2183, 100) = .5864
.........
increasing the sample proportion , increases the z -value  (-.2183 > -.6547)
and decreases the probability of that sample proportion