The mean income per person in the United States is $36,500, and the distribution of incomes follows a normal distribution. A random sample of 10 residents of Wilmington, Delaware, had a mean of $41,500 with a standard deviation of $8,600. At the 0.050 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average?a) State the null hypothesis and the alternate hypothesis.
b) State the decision rule for 0.100 significance level. (Round your answer to 3 decimal places.)
c) Compute the value of the test statistic. (Round your answer to 2 decimal places.)

Tariffs and quotas are often imposed when a government is more responsive to interests, and the benefits of those trade restrictions are often ; concentrated producer; widely dispersed consumer; widely dispersed consumer; concentrated

Jiffy printing shops does a lot of printing job for college students. the shop use an average of 25 cases of copy paper each day during the 312 days last year. the shop opens 6 days a week for 52 weeks each year and closes on sundays. each case of paper costs $35. it conducts a count of its paper inventory at the end of every quarter of the year. the table below shows the inventory counting records for last year. inventory end of quarter 1 700 cases end of quarter 2 1,050 cases end of quarter 3 920 cases end of quarter 4 800 cases 1. what's jiffy's cost of goods sold last year? 2. what's jiffy's average aggregate inventory value? 3. what's jiffy's inventory turnover last year? 4. what is the printing shop's weeks of supply last year?

You are a professor of economics at a university.? you've been offered the position of serving as department? head, which comes with an annual salary that is ? $5 comma 500 higher than your current salary.? however, the position will require you to work 200 additional hours per year. suppose the next best use of your time is spending it with your? family, which has value of ? $10 per hour.