All of the following are examples of mixed economies EXCEPT Multiple Choice
in socialist France, the French government owns the postal service industry.
in socialist Sweden, most businesses are owned and operated by private individuals.
in capitalist United States, an independent federal agency operates the postal service.
In once-communist Russia, private ownership of businesses has been implemented.
in communist China, state capitalism is used to advance the economy.

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