Illegal trafficking of some items in a country was banned by its government in 2007. Is this supported by a majority, or a minority, of the population of the country?

In a global poll conducted by an international agency for a reputed newspaper in January 2010 involving 900 residents of the country that asked whether the ban should stand or be repealed, 55% supported the banning. Let π

denote the population proportion of the country that supports banning. For testingH0: π = 0.5 againstHa: π = 0.5,

(a) Find the standard error, and interpret.

(b) Find the test statistic, and interpret.

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