Downs, Frey, and Vick formed the DFV general partnership to act as manufacturers' representatives. The partners agreed Downs would receive 40% of any partnership profits and Frey and Vick would each receive 30% of such profits. It was also agreed that the partnership would not terminate for five years. After the fourth year, the partners agreed to terminate the partnership. At that time, the partners' capital accounts were as follows: Downs, $20,000; Frey, $15,000; and Vick, $10,000. There also were undistributed losses of $30,000. If Frey died before the partnership terminated .

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