Imagine that big bank has a 5% reserve requirement and $7,000 in deposits. if this bank has loaned out all it can given the reserve requirement, which of the following statements is correct?

a. big bank has $35 in reserves and $4,500 in loans
b. big bank has $250 in reserves and $4,750 in loans.
c. big bank has $350 in reserves and $6,650 in loans.
d. none of the above statements is correct

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