Six months ago, a survey was undertaken to determine the degree of support for the government. Of a sample of 1200 voters, 76% indicated that they...

Six months ago, a survey was undertaken to determine the degree of support for the government. Of a sample of 1200 voters, 76% indicated that they supported the government. This month a new survey of 800 voters revealed that 68% of the voters supported the government(a) Use the critical value method to test whether or not the popularity of the government has decreased at the 5% significance level.(b) Use the p-value method to test whether or not the popularity of the government has decreased by more than 5% at the 10% significance level.