It is claimed by the Census bureau that 15% of Americans live below poverty level. A survey of 2100 people in USA showed that 381 were living below poverty. Hypothesis is to be tested at 2% level of significance that , the proportion of Americans living below poverty level is 0.15 against that it is not. For this test, state the (a) null and alternative hypothesis (b) value of the test statistic (c) the distribution of the test statistic.