Mathematics, 30.07.2021 04:00 lazavionadams81

The degenerative disease osteoarthritis most frequently affects weight-bearing joints such as the knee. An article presented the following summary data on stance duration (ms) for samples of both older and younger adults. Age Sample Size Sample Mean Sample SD
Older 29 809 116
Younger 18 770 71
Assume that both stance duration distributions are normal.
(a) Calculate a 99% CI for true average stance duration among elderly individuals. (Round your answers to one decimal place.)
ms
(b) Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.)
t =
P-value =

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:30

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Answers: 1

Answer

Mathematics, 21.06.2019 19:00

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Could somebody me with this radical simplification?

Answers: 1

Answer

Mathematics, 21.06.2019 21:00

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Answers: 2

Answer

You know the right answer?

The degenerative disease osteoarthritis most frequently affects weight-bearing joints such as the kn...

Questions

Engineering, 02.11.2019 06:31

11. a planned extrusion operation involves steel at 800°c, with an initial diameter of 100 mm and a final diameter of 20 mm. two presses, one with a c...

Business, 02.11.2019 06:31

19) the financial data of company abc on yahoo! finance’s includes cost of revenue. you would like to break the cost of revenue into its two major co...

Computers and Technology, 02.11.2019 06:31

1: .data 2: varx dword 9,8,7,6,5,4,3,2,1,0 3: vary dword (lengthof varx) dup(0) 4: .code 5: mov e...

Business, 02.11.2019 06:31

12. the market for rice in an east asian country has demand and supply given by qd = 28 -4p and qs = -12 + 6p, where quantities denote millions of bus...

Physics, 02.11.2019 06:31

5–111. a box having a weight of 8 lb is moving around in a circle of radius ra = 2 ft with a speed of (va)1 = 5 ft> s while connected to the end of...

Business, 02.11.2019 06:31

24. on january 15, 2015, the accounts receivable balance was $7,000 and the balance in the allowance for doubtful accounts was $700. on january 16, 20...

Business, 02.11.2019 06:31

2. assume the following changes to the underlying budgeting assumptions: (1) 50% of a month’s credit sales are collected in the month the sales are m...

Engineering, 02.11.2019 06:31

4-35 a well-insulated rigid tank contains 5 kg of a saturated liquid-vapor mixture of water at 100 kpa. initially three-quarters of the mass is in the...

Social Studies, 02.11.2019 06:31

Joe and rita each have some cookies and milk. joe is willing to trade 2 cookies for an additional ounce of milk. rita is willing to trade four cookies...

Engineering, 02.11.2019 06:31

5.32 the velocity field within a laminar boundary layer is approximated by the expression v! = auy x1=2 ^i+ auy2 4x3=2 ^j in this expression, a=141 m−...

Social Studies, 02.11.2019 06:31

Which of the following is a balance-strength exercise that requires an individual to step forward with toes pointing straight ahead and then pushing o...

Chemistry, 02.11.2019 06:31

4. write the balanced chemical equation and acid‐equilibrium expression (ka) for the dissociation of hc2h3o2 in water. perform the necessary calculati...

Engineering, 02.11.2019 06:31

5kg of air undergoes two processes in a piston- cylinder device. the first process is an isobaric compression process from 1 bar, 600 k to a volume th...

Chemistry, 02.11.2019 06:31

Hydrogen sulfide gas gives rotten eggs their terrible odor. hydrogen sulfide burns in air (o2) to produce sulfide dioxide gas and water vapor. in 1.38...

Business, 02.11.2019 06:31

Janet home went to citizen bank. she borrowed $7,000 at a rate of 8%. the date of the loan was september 20. janet hoped to repay the loan on january...

Advanced Placement (AP), 02.11.2019 06:31

Energy that is lost as heat is destroyed is absorbed by other objects can still be used to do work...

Business, 02.11.2019 06:31

Rafi offers to sell his sailboat, sea siren, to tara for $50,000. referring to the prices for similar vessels, tara says, "i’ll pay no more than $40,0...

Social Studies, 02.11.2019 06:31

If businesses buy fewer capital goods, and nothing else changes, then total expenditures on u. s. goods and services will decrease. and if total expen...

Social Studies, 02.11.2019 06:31

26. a standard deck of playing cards consists of 52 cards, half of which are black and half of which are red. if three cards are picked at random from...

Social Studies, 02.11.2019 06:31

Marco thinks "all women are nurturing and gentle." however, when he thinks about lesbians, his stereotype of this smaller group goes against the stere...

More questions: Mathematics Another questions