An engineer designs an improved engine for a certain make of automobile. the previous design had an average highway gas mileage of 30 mpg (miles per gallon). the new engine has an average highway gas mileage of 30.2 mpg, using a sample of 3600 cars of the model with the new engine. although the difference is quite small, the effect is statistically significant. the explanation is

Cool beans is a locally owned coffee shop that competes with two large coffee chains, planeteuro and frothies. alicia, the owner, hired two students to count the number of customers that entered each of the coffee shops to estimate what percent of people who are interested in coffee are visiting each shop. after a week, the students found the following results: 589 visited cool beans, 839 visited planeteuro, and 1,290 visited frothies. the students were surprised that cool beans had 139 visits on monday which represented 59% of all people who visited one of the three coffee shops on mondays. how many people visited one of the three coffee shops during the week?

Scenario: you have advised the owner of bond's gym that the best thing to do would be to raise the price of a monthly membership. the owner wants to know what may happen once this price increase goes into effect. what will most likely occur after the price of a monthly membership increases? check all that apply. current members will pay more per month. the quantity demanded for memberships will decrease. the number of available memberships will increase. the owner will make more money. bond's gym will receive more membership applications.

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