Which of the following is an example of a positive economic statement? Question 19 options: a) Corrupt politicians ought to be voted out of office. b) An increase in the price of gasoline will cause a reduction in the amount of gasoline purchased. c) Marginal tax rates should be reduced for individuals in the highest tax bracket. d) Workers with families should be paid at least the minimum wage. e) If crime rates were reduced, the world would be a better place to live.

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

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)

An upper-middle-class manager tends to have hostile relationship with the working-class employees in the firm because of his tendency to perceive himself as superior to them based on his class background. in this example, the manager exhibits: question 14 options: 1) class consciousness. 2) cultural awareness. 3) social mobility. 4) group orientation.