Next three questions are related to the following binary sample data
In the sample for question 13, the gender of employees is shown below (Male = 0, Female = 1).
	0	0	0	0	0	0	0	0
	1	0	0	0	0	0	1	0
	0	0	1	1	0	0	0	1
	1	0	0	0	0	0	0	1
	0	1	0	0	0	0	1	0
	0	1	1	0	0	0	0	0
	1	0	0	0	0	0	0	0
	0	0	0	1	0	1	0	0
	0	0	0	0	0	0	0	0
	1	0	1	1	1	0	0	0
	1	0	0	1	1	0	1	0
	1	0	1	1	0	0	1	0
	0	0	0	0	1	0	0	0
	0	0	0	0	0	0	1	1
	0	0	0	0	0	1	1	0
	0	0	1	1	0	0	0	0
	0	1	1	0	0	1	0	0
	0	0	1	0	0	0	0	0
	0	1	0	0	0	0	1	1
	0	0	1	0	0	1	0	0
	0	1	0	1	0	0	1	0
	0	0	0	1	1	1	0	0
	0	1	0	0	0	0	0	0
	0	0	0	0	1	0	0	1
	0	0	0	1	0	0	0	1
	0	0	0	0	0	0	1	0
	0	0	0	0	0	0	0	0
	0	0	1	0	0	0	0	1
	0	0	0	0	0	0	1	0
	1	0	1	0	0	0	0	0
	1	0	1	0	1	1	0	0
	0	0	1	0	1	0	0	0
	0	1	0	0	1	1	0	0
	1	0	0	0	0	1	0	0
	0	0	0	0	0	0	0	0
	1	1	0	0	0	1	0	0
15	The proportion of females in this sample is,
a	0.307
b	0.279
c	0.253
d	0.230
16	The confidence interval for the proportion employees who are female is ______. Use an error probability of 5%.
a	0.233	0.274
b	0.223	0.284
c	0.213	0.294
d	0.203	0.304
17	You decide to build a 95% interval estimate with a margin of error of 0.03 (3 percentage points). The minimum sample size to obtain the desired MOE is, = ______. For planning value use the proportion obtained from the first sample.
a	711
b	808
c	918
d	1043
Next two questions are related
18	To build an interval estimate for the proportion (percentage) of American households who live paycheck-to-paycheck, a random sample 660 full-time workers showed 552 live paycheck-to-paycheck.
	The point estimate of the population proportion is,
a	0.836
b	0.804
c	0.773
d	0.744
19	In the previous question, build a confidence interval such that in 19 out of 20 cases such intervals would capture the actual population proportion of households who live paycheck-to-paycheck is ________.
a	0.822	0.850
b	0.815	0.858
c	0.808	0.865
d	0.799	0.873
20	The following is an interval estimate with a 95% confidence level for the proportion of Indiana undergraduate students who plan to go to graduate school:
			L	U
			0.249	0.321
	The size of the sample used to build this interval is ________.
a	514
b	605
c	712
d	838