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Global poll conducted for Reuter News in May 2013 of 1000 Canadians that asked whether legalization should stand or be repealed, 63% supported legalization.

Let π denote the population proportion of Canadian adults who support legalization. For testing H0: π = 0.50 against Ha: π = 0.50,

(a) Find the standard error, and interpret.

(b) Find the test statistic, and interpret.

(c) Find the P-value, and interpret in context.