The Earned Income Tax Credit (EITC) is: a. a transfer to low-income people who are unable to work.
b. a flat grant that increases by $4,000 the income of all workers below the poverty level.
c. a subsidy to the poor who have low earnings that increases as they earn more, reaches a maxi­mum, and then is phased out to zero as earnings increase above a certain maximum.
d. available to all persons whose incomes are below the poverty level, whether they work or not.

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

One of the benefits of a well designed ergonomic work environment is low operating costs is true or false

When a market is in equilibrium, the buyers are those with the willingness to pay and the sellers are those with the costs.