Assuming purchase costs are rising, determine which of the statements below are correct regarding the cost of goods sold under FIFO, LIFO and weighted average cost flow methods. A. Companies using FIFO will report the highest gross profit and net income. B. Companies using FIFO will pay higher taxes than companies using LIFO, assuming all else being equal. C. Weighted average cost of goods sold will be between FIFO and LIFO costs of goods sold. D. Companies using FIFO will report the smallest cost of goods sold. E. Companies using LIFO will report the smallest cost of goods sold.

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