How much does a sleeping bag cost? let's say you want a sleeping bag that should keep you warm in temperatures from 20°f to 45°f. a random sample of prices ($) for sleeping bags in this temperature range is given below. assume that the population of x values has an approximately normal distribution.60 110 75 35 90 55 30 23 100 110 105 95 105 60 110 120 95 90 60 70
(a) use a calculator with mean and sample standard deviation keys to find the sample mean price x and sample standard deviation s. (round your answers to two decimal places.)
(b) using the given data as representative of the population of prices of all summer sleeping bags, find a 90% confidence interval for the mean price μ of all summer sleeping bags. (round your answers to two decimal places.)

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