subject

Mathematics, 23.12.2020 21:50 pipo5699

It is suspected that calcium in blood platelets may be related to blood pressure. As part of a study of this relationship, researchers recruited 30 subjects whose blood pressure was normal (i. e., not abnormally elevated). For each subject two measurements were made: pressure (average of systolic and diastolic measurements) and calcium concentration in the blood platelets. The sample size is n = 30, and the sample correlation is r = 0.4. Is there evidence that blood pressure and platelet calcium are linearly related? State the hypothesis and test it at 5% level of significance. What is your conclusion?

ansver

Answers: 2

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 15:00

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

Answers: 1

question

Mathematics, 21.06.2019 18:40

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Answers: 1

question

Mathematics, 21.06.2019 18:40

Which statements regarding efg are true? check all that apply.

Answers: 1

question

Mathematics, 21.06.2019 20:30

If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Answers: 2

You know the right answer?

It is suspected that calcium in blood platelets may be related to blood pressure. As part of a study...

Questions

question

Business, 10.12.2019 20:31

Project managers interested in controlling quality on projects will often concentrate upon project inputs. which of the following are important consid...

question

Business, 10.12.2019 20:31

Department store owner brendan mcgowan decided to make a gutsy move with his high-end western son stores. rather than focus on the upscale, luxury mar...

question

Social Studies, 10.12.2019 20:31

Blackbird inc., a pr company, aims to hire the best candidates possible. the company recruiting policy is to administer a standardized intelligence te...

question

Health, 10.12.2019 20:31

Describe the forces that predict the timing of puberty? i need !...

question

Social Studies, 10.12.2019 20:31

Explain why marriage was an early and vitally important human invention. discuss the various social strategies people have used to create ties between...

question

Physics, 10.12.2019 20:31

In redox half-reactions, a more positive standard reduction potential means i. the oxidized form has a higher affinity for electrons ii. the oxidized...

question

Physics, 10.12.2019 20:31

Asolid ball rolls without slipping from rest (starting at height h = 6.00 m) until it leaves the horizontal section at the end of the track, at height...

question

Physics, 10.12.2019 20:31

If you use such a tank to fill 0.020 m3 foil balloons (which don't stretch, and so have an internal pressure that is very close to atmospheric pressur...

question

Engineering, 10.12.2019 20:31

Steam at 3 mpa and 400°c is expanded to 30 kpa in an adiabatic turbine with an isentropic efficiency of 92 percent. determine the power produced...

question

Computers and Technology, 10.12.2019 20:31

Amultimode application software package that allows a company to link and coordinate the entire set of functional activities and operations necessary...

question

Chemistry, 10.12.2019 20:31

The molar mass is determined by measuring the freezing point depression of an aqueous solution. a freezing point of -5.20°c is recorded for a solution...

question

Biology, 10.12.2019 20:31

Although we study the citric acid cycle as the final stage oxidation of carbon from glucose, an in-depth look at the cycle shows intermediates enterin...

question

Biology, 10.12.2019 20:31

There have been several mass extinctions in the planet's history, such as the extinction of the dinosaurs, but the current mass extinction is differen...

question

History, 10.12.2019 20:31

Which political practice was created in the roman rep ublic that we use in america today!...

question

Physics, 10.12.2019 20:31

Three liquids that will not mix are poured into a cylindrical container. the volumes and densities of the liquids are 0.574 l, 2.50 g/cm3;

question

Mathematics, 10.12.2019 20:31

Auniversity interested in tracking its honors program believes that the proportion of graduates with a gpa of 3.00 or below is less than 0.20. in a sa...

question

Social Studies, 10.12.2019 20:31

There is a lot of talk these days about the need for greater fuel economy in suvs. but today's suv's are excellent just the way they are. the lexus ls...

question

Social Studies, 10.12.2019 20:31

Nathan has an overinflated and unjustified sense of self-importance. he is preoccupied with fantasies of success and believes that he is entitled to s...

question

Business, 10.12.2019 20:31

Sterling co. recently underwent a sell-off of its home gardening and repair subsidiary, campbell co., to an independent party. if sterling recorded a...

question

Business, 10.12.2019 20:31

Alex carter wanted to invest in the stock market, but didn't have the entire $10,000 he needed to buy the shares of the company he wanted. alex does h...

More questions: Mathematics Another questions

Questions on the website: 13722360