In the 2015 federal election, 39.47% of the electorate voted for
the Liberal party, 31.89% for the Conservative party, 19.71% for
the NDP, 4.66% for the Bloc Quebecois, and 3.45% for the Green
party.
(a) A recent poll of 1500 respondents found that 29.3% support
the Conservative party. Test whether this is sufficient evidence to
conclude that the level of support has dropped since the election.
Use the 5% level of significance and show your manual
calculations.
(b) Suppose you...