Dure corporation's cost formula for its selling and administrative expense is $24,500 per month plus $1 per unit. for the month of july, the company planned for activity of 7,200 units, but the actual level of activity was 7,160 units. the actual selling and administrative expense for the month was $31,460. the selling and administrative expense in the flexible budget for july would be closest to: multiple choice $31,524 $31,460 $31,660 $31,700

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