In a sample of n = 480 IUPUI undergraduate students polled x = 144 stated that they are planning to go to graduate graduate school.
12	The standard error of the sample proportion is
a	0.0209
b	0.0198
c	0.0162
d	0.0112
13	The lower and upper end of a 90% confidence interval for the proportion of IUPUI undergraduate students who plan to go to graduate school are L = ______ and U = _____.
a	0.266	0.334
b	0.258	0.342
c	0.250	0.350
d	0.241	0.359
14	In the previous question, the margin of error for the interval so that in 19 out of 20 cases such intervals would contain the actual population proportion of IUPUI undergraduate student who plan to go to graduate school is, MOE = _______.
a	0.046
b	0.041
c	0.035
d	0.031