41.
fewer young people are driving. in 1983, 87% of 19-year-olds had a driver's license.
twenty-five years later that percentage had dropped to 75% (university of michigan
transportation research institute website, april 7, 2012). suppose these results are based
on a random sample of 1200 19-year-olds in 1983 and again in 2008.
a. at 95% confidence, what is the margin of error and the interval estimate of the num-
ber of 19-year-old drivers in 1983?
b. at 95% confidence, what is the margin of error and the interval estimate of the num-
ber of 19-year-old drivers in 2008?
c. is the margin of error the same in parts (a) and (b)? why or why not?

Why does an organization prepare a balance sheet? a. to reveal what the organization owns and owes at a point in time b. to reveal how well the company utilizes its cash c. to calculate retained earnings for a given accounting period d. to calculate gross profit for a given accounting period

What is the correct percentage of texas teachers charged with ethics violations each year?

University hero is considering expanding operations beyond its healthy sandwiches. jim axelrod, vice president of marketing, would like to add a line of smoothies with a similar health emphasis. each smoothie would include two free health supplements such as vitamins, antioxidants, and protein. jim believes smoothie sales should fill the slow mid-afternoon period. adding the line of smoothies would require purchasing additional freezer space, machinery, and equipment. jim provides the following projections of net sales, net income, and average total assets in support of his proposal. sandwichesonly sandwiches and smoothies net sales $ 750,000 $ 1,350,000 net income 120,000 210,000 average total assets 350,000 750,000 return on assetschoose numerator ÷ choose denominator = return on assets÷ = return on assets÷ = profit margin÷ = profit margin÷ = asset turnover÷ = asset turnover÷ = times