A cyclically-adjusted budget balance: a. shows what the budget balance would be when there is a significant amount of cyclical unemployment. b. is an estimate of what the budget balance would be if real GDP were equal to potential output. c. is a good indicator of the structural deficit that exists in the economy. d. is the same as the national debt and it rises as interest cost is accrued. e. estimates the actual budget balance if the unemployment rate was equal to zero.

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis. b)reject the null hypothesis and conclude the mean is higher than $6,000 per day. c)reject the null hypothesis and conclude the mean is lower than $6,000 per day. d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day. expert answer