Mathematics, 11.02.2020 04:25 nehemiahj85
Joe spends $8 on lunch and $6.50 on dry-cleaning he also buys two shirts that each cost the same amount Joe spend a total of $52 what is the cost of each shirt
Answers: 2
Mathematics, 21.06.2019 12:30
Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (Ï€ = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m
Answers: 1
Mathematics, 22.06.2019 01:00
Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?
Answers: 1
Mathematics, 22.06.2019 01:10
Jobs and productivity! how do retail stores rate? one way to answer this question is to examine annual profits per employee. the following data give annual profits per employee (in units of 1 thousand dollars per employee) for companies in retail sales. assume σ ≈ 4.0 thousand dollars. 3.7 6.7 3.6 8.5 7.5 5.9 8.7 6.4 2.6 2.9 8.1 −1.9 11.9 8.2 6.4 4.7 5.5 4.8 3.0 4.3 −6.0 1.5 2.9 4.8 −1.7 9.4 5.5 5.8 4.7 6.2 15.0 4.1 3.7 5.1 4.2 (a) use a calculator or appropriate computer software to find x for the preceding data. (round your answer to two decimal places.) thousand dollars per employee (b) let us say that the preceding data are representative of the entire sector of retail sales companies. find an 80% confidence interval for μ, the average annual profit per employee for retail sales. (round your answers to two decimal places.) lower limit -- thousand dollars upper limit -- thousand dollars (c) let us say that you are the manager of a retail store with a large number of employees. suppose the annual profits are less than 3 thousand dollars per employee. do you think this might be low compared with other retail stores? explain by referring to the confidence interval you computed in part (b). yes. this confidence interval suggests that the profits per employee are less than those of other retail stores. no. this confidence interval suggests that the profits per employee do not differ from those of other retail stores. correct: your answer is correct. (d) suppose the annual profits are more than 6.5 thousand dollars per employee. as store manager, would you feel somewhat better? explain by referring to the confidence interval you computed in part (b). yes. this confidence interval suggests that the profits per employee are greater than those of other retail stores. no. this confidence interval suggests that the profits per employee do not differ from those of other retail stores. (e) find an 95% confidence interval for μ, the average annual profit per employee for retail sales. (round your answers to two decimal places.) lower limit 3.75 incorrect: your answer is incorrect. thousand dollars upper limit 6.41 incorrect: your answer is incorrect. thousand dollars
Answers: 3
Joe spends $8 on lunch and $6.50 on dry-cleaning he also buys two shirts that each cost the same amo...
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10
Computers and Technology, 18.10.2019 06:10