Mathematics, 20.11.2019 21:31 Horde
Silicone implant augmentation rhinoplasty is used to correct congenital nose deformities. the success of the procedure depends on various biomechanical properties of the human nasal periosteum and fascia. an article reported that for a sample of 20 (newly deceased) adults, the mean failure strain (%) was 24.0, and the standard deviation was 3.3.
(a) assuming a normal distribution for failure strain, estimate true average strain in a way that conveys information about precision and reliability. (use a 95% confidence interval. round your answers to two decimal places.)
( , )
(b) predict the strain for a single adult in a way that conveys information about precision and reliability. (use a 95% prediction interval. round your answers to two decimal places.)
( , )
(c)how does the prediction compare to the estimate calculated in part (a)? (select the answer from 1~3)
1.the prediction interval is much wider than the confidence interval in part (a).
2.the prediction interval is the same as the confidence interval in part (a).
3.the prediction interval is much narrower than the confidence interval in part (a).
Answers: 3
Mathematics, 21.06.2019 17:00
Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.
Answers: 1
Mathematics, 21.06.2019 19:40
Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.
Answers: 1
Mathematics, 21.06.2019 23:40
The function f(x)= -(x+5)(x+1) is down. what is the range of the function?
Answers: 3
Silicone implant augmentation rhinoplasty is used to correct congenital nose deformities. the succes...
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