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?

Baskin promotions, inc. sells t-shirts decorated for a variety of concert performers. the company has developed the following budget for the coming year based on a sales forecast of 80,000 t-shirts: sales $ 1,400,000 cost of goods sold 820,000 gross profit 580,000 operating expenses ($100,000 is fixed) 418,400 operating income 161,600 income taxes (30% of operating income) 48,480 net income $ 113,120 cost of goods sold and variable operating expenses vary directly with sales, and the income tax rate is 30% at all levels of operating income. if the concert season is slow due to poor weather, baskin estimates that sales could fall to as low as 60,000 t-shirts. assume baskin actually achieves the 60,000 unit sales level, and that net income actually earned at this level was $70,000. a performance report would indicate that net income was: