Same-sex marriage was legalized across Canada by the Civil Marriage Act enacted in 2005. Is this supported by a majority, or a minority, of the Canadian population? In an Ipsos Global poll conducted for t{Reuter News} in May 2013 of 1000 Canadians that asked whether legalization should stand or be repealed 63% supported legalization. Let pi denote the population proportion of Canadian adults who support legalization. For testing H0: pi = 0.50 against Ha: pi not = 0.50

a) Find the standard error and interpret.
b) Find the test statistic and interpret.
c) find the P-value, and interpret it in context.