5

At the S% significance lerel do the participants' resting heart rates significantly Incrcasc as they progress through the study? How do you know? Support your ...

Question

At the S% significance lerel do the participants' resting heart rates significantly Incrcasc as they progress through the study? How do you know? Support your answer With the appropriate evidence below:

At the S% significance lerel do the participants' resting heart rates significantly Incrcasc as they progress through the study? How do you know? Support your answer With the appropriate evidence below:



Answers

Researchers have also observed that athletes and non-athletes have the same mean resting cardiac output, even though athletes have a far lower resting heart rate. How is this possible?

To start this problem. The first step we need to do as we need to do something that is called the T. Test or a T statistic. That's what we're finding a T statistic. The reason why is because in order to find the p value or the significance of the test, we need to have this number. So that's where we're going to start. So to do a T. Test, there's several different equations of how to get there. I'm gonna write both down so you can use whichever one you want, but we're only going to use one. So this is one option right here, it's more of a street forward option because you just kind of get T as your answer. Remember this is the E. Right? Right here, the symbol and the symbol of E represents the sum like this and then this and over that's a bad line for the second. There we are. That's right. Um This is just a little bit bulky for my liking so I don't really do this one as much, but this is one option, like I was saying, another way that this can be performed is how we're going to do it, or how I'm going to do it. So when a bar X one minus export to over square root, remember this symbol is the standard deviation for a population over and one loss this continues right here, deviation, swear it again. But for the second, the second one over until. So that's what we're gonna use right now. And when we use that, we know there are numbers right? Um given numbers we have for regular exercise, I'll draw over here just so it's easier to see this is where regular exercise, the end we had was 40. Um for none, none for no regular exercise was 30. This is Bar X. This is gonna be um we're gonna represent regular exercise at bar X. 1 63. And then marks to which would be this number would be 71 mm like this. And okay, so this is the table that we were basically given. So now with this we can simply put things in, we have the expo we have X. To have the center deviations and we can kind of figure that out pretty nicely. So once you solve and put everything in it will look something like this 63 minus 71 over one. My ex 40 plus 1.44 over 30. And that is going to give us our t. Test um statistic which is around negative 29.61 We're going around that, it's really 609 but we just can round right there. So this is our key test answer, but that's not exactly and what they're asking for fully. So that's the relevant test of the hypothesis. But we're using this now this is the relevant test, their part A but now we need to convert that into the significance of the test. And in order to do that we need a P. Value. So I was right here baby. The p value. If you look on any chart for T. Tests and P values you can kind of match it up and see that 29.61 for a T. Test will give you a p value of zero point 0001 So that's our P value. So now that we know the p value we can answer part beat up asking to compute you observe significance of the test. This tells us the significance of the test. How because the p value is less than 0.1 So that means that we reject the null hypothesis at a 1% level of significance is what they asked for, um In addition, this also means that the sufficient evidence, there is sufficient evidence. There is sufficient evidence, um to indicate that the resting rate, um and men aged from the 18 to 25 who exercise regularly over here is more than five ft per minute, less than men who don't exercise regularly. So this is the significance of the test right here.

All right. So pure. The findings of the study do not support either doc, your doctors and demand. I'm c I'm writing here that the findings of the study the north support, uh, either doctors argument, because we cannot see that the dock, your doctor's commons going to be all right in every case, that might be poor civilian builder for some value cases. So in this case, completely, I would say that these results are due to the immigration effect because according to the regression effect, I consider the patients who are high on the first readings should show some improvement when the second readings. Right? And, uh, similarly, the patients who are low on the first beatings sure. So comparatively high values on second readings.

So this video is going to go over problem eight of chapter 30 in biology concepts and investigations. Third edition. And this is talking about the circulatory system and talking about heart rate and the effect that exercise has on heart rate. Okay so okay hurry increases with exercise and we have to figure out why. So when we exercise our skeletal muscle is working really hard, it needs energy, right? So when we're exercising we need energy and the energy for a body is in the form of a teepee or dennison. Try philosophy. Now to make ATP we need um some nutrients so like glucose is a really common example of um a carbohydrates that we use and break it down and make a T. P. Um But we also need oxygen. So we need oxygen to make ATP. And then CO two is a byproduct when you make your T. P. And so we need to breathe that out. So this is part of the reason why we breathe oxygen in and breathe CO. Two out is because we need oxygen to make a teepee. And while we make that A. D. P. We turn that 02 into CO two um with some other carbon compounds. Okay so the function of our heart is to pump blood which has oxygen um to our tissues to our muscles and our feet and our legs and arms into our organs and our um stomach. So um we need our heart to make sure that our different tissues get 02 So if you're running a mile you're using your leg muscles a lot. You're going to need to pump a lot of 02 to your leg muscles. And so when you're using more 02 you need to increase um what's called your cardiac output and your cardiac output is basically the volume of blood that you pump per unit of time. And it's calculated by the heart rate times the stroke volume. And the stroke volume is the amount of uh blood that you pump with each beat. So you want to increase your stroke volume or you want to increase your cardiac output. So did you that you either have to increase your heart rate or increase your stroke volume. Now the only way you can increase your stroke volume is to increase your contract ability in the strength of your heart. So when you're exercising, you're not necessarily increasing the strength of your heart. So with exercise you need to increase your heart rate so that you can increase your cardiac output. And that is one of the main ways that your body adjusts to exercise and eating that increased oxygen now over time. So if you exercise regularly for months or years, um your heart rate or your heart gets a little bit more efficient at this. And what happens is it gets stronger so we have our cardiac output heart rate times stroke volume. So it gets stronger. So that means it can pump more out with each beat. So ultimately we're increasing your stroke volume as we help. A heart gets stronger with exercise. So when you're at rest you don't necessarily need that increased cardiac output anymore. Like you did during exercise, you want your cardiac output to stay the same. And so how your body um counteracts this is it decreases its heart rate, it's resting heart rate so this is at rest. And so then we keep the same cardiac output as before. Your hearts just being a little bit more efficient with it. Um So that should answer these two questions. So heart rate increases so we can increase cardiac output and ultimately increase our 02 delivery and uh discard or CO. Two a little bit faster. And then heart rate decreases at rest with regular exercise. Because we do have that increase stroke volume. So we decrease our heart rate to keep our cardio camp with the same.

So the variable here measures to heart great, which is a numerical variable. And this is a new America Want we will see that this is a constitutive parable.


Similar Solved Questions

5 answers
In the accompanying diagram of circle T,mQR = 1425 mSR = 40"and m ZQTR = 1225What is the measure of PQ?589 B. 102" 122" 760
In the accompanying diagram of circle T,mQR = 1425 mSR = 40"and m ZQTR = 1225 What is the measure of PQ? 589 B. 102" 122" 760...
2 answers
Let 9 R+ R be a periodic function with period T, i.e.g(t+T) = g(t) , for all t e R.Define the random process {X(t),t € R} as x(t) g(t + U), for all t € R_where UUni form(0,T). Show that X(t) is a WSS random processLet {N(t),t € [0,0)} be a Poisson Process with rate A- Find its covariance functionCw(t1,t2) = Cov(N(t1), N(t2)) , for t1,t2 € [0,&)_
Let 9 R+ R be a periodic function with period T, i.e. g(t+T) = g(t) , for all t e R. Define the random process {X(t),t € R} as x(t) g(t + U), for all t € R_ where U Uni form(0,T). Show that X(t) is a WSS random process Let {N(t),t € [0,0)} be a Poisson Process with rate A- Find its...
5 answers
Point) Consider the differential equation 16x y" 16y = e-4Use coefficients C1 and C2 if needed: Use exp(x) for the exponential function: (a) find one solution of the homogeneous equation: Yn(x) (b) find a particular solution to the nonhomogeneous equation using the variation of parameters formula: Yp(x)
point) Consider the differential equation 16x y" 16y = e-4 Use coefficients C1 and C2 if needed: Use exp(x) for the exponential function: (a) find one solution of the homogeneous equation: Yn(x) (b) find a particular solution to the nonhomogeneous equation using the variation of parameters form...
5 answers
Question 3Classify each of the following structures as either aromatic" , "antiaromatic" , or "nonaromatic"_ How many pi electrons are in the structure?
Question 3 Classify each of the following structures as either aromatic" , "antiaromatic" , or "nonaromatic"_ How many pi electrons are in the structure?...
5 answers
Is the set of odd numbers closed under: a) addition subtraction multiplication division If your answer is NO, show a counter example:
Is the set of odd numbers closed under: a) addition subtraction multiplication division If your answer is NO, show a counter example:...
5 answers
4. Factor the matrix into LU and LDU forms (Notice the matrices are from Question 3.)-3 -9 -232535 -44 |5. Find the inverse of the matrix by the Gauss-Jordan method:A = 33 0 -1
4. Factor the matrix into LU and LDU forms (Notice the matrices are from Question 3.) -3 -9 -2 3 2 53 5 -4 4 | 5. Find the inverse of the matrix by the Gauss-Jordan method: A = 33 0 -1...
5 answers
Why is the specific gravity of a substance equal to its density in $mathrm{g} / mathrm{cm}^{3} ?$
Why is the specific gravity of a substance equal to its density in $mathrm{g} / mathrm{cm}^{3} ?$...
5 answers
Evaluate. Assume u > 0 when In u appears. x71 e+12 dx11 X e+2 dx = 0 (Type an exact answer:)
Evaluate. Assume u > 0 when In u appears. x71 e+12 dx 11 X e+2 dx = 0 (Type an exact answer:)...
5 answers
Use the Laplace transform to solve the given initial value problem. For technical reasons, write Uc for the Heaviside function that turns on at C,not Uc(t) Y"-Zy'+ly-Sa(t) y(o) Y'(0) = 13s +Y(s)2s + 1(t-4) (t - 4)ey(t)
Use the Laplace transform to solve the given initial value problem. For technical reasons, write Uc for the Heaviside function that turns on at C,not Uc(t) Y"-Zy'+ly-Sa(t) y(o) Y'(0) = 1 3s + Y(s) 2s + 1 (t-4) (t - 4)e y(t)...
5 answers
1 Find the maximum and minimum values of f (x.y) 4cy 2x2 4y? + 4y over the region {(2,9) :-2 <x <2,-2 < y <2}
1 Find the maximum and minimum values of f (x.y) 4cy 2x2 4y? + 4y over the region {(2,9) :-2 <x <2,-2 < y <2}...
5 answers
CH;HC_ C~CHHc"CH;
CH; HC_ C~CH Hc" CH;...
1 answers
Repeat Exercise 71 if the two students are able to get a loan for $\$ 30,000$ to cover costs and they can dedicate at most 120 hours to assembling the computers.
Repeat Exercise 71 if the two students are able to get a loan for $\$ 30,000$ to cover costs and they can dedicate at most 120 hours to assembling the computers....
1 answers
Recognize Cause and Effect Illustrate how a buffer works using the $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{3}+/ \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{2}$ buffer system. Show with equations how the weak base/conjugate acid system is affected when small amounts of acid and base are added to a solution containing this buffer system.
Recognize Cause and Effect Illustrate how a buffer works using the $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{3}+/ \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{2}$ buffer system. Show with equations how the weak base/conjugate acid system is affected when small amounts of acid and base are added to ...
5 answers
085 = UXHVaz +8h7Moz ZHV5k482+3CA88 = 'HVVemHz +3suopljeaJ BUIMOIIO} a41 Buisn UXHV JOJ #NOS1 UXHV Ov + ) < 87 +Vuopisano
085 = UXHV az +8h7 Moz ZHV 5k482+3 CA88 = 'HV VemHz +3 suopljeaJ BUIMOIIO} a41 Buisn UXHV JOJ #NOS 1 UXHV Ov + ) < 87 +V uopisano...
4 answers
4x+4- IFind (a) lim 5-5limof f() = 2x ~Ax-5 point Ihe graph Find the line horizontal. where the tan gent possition function s() = -1642+100 The time interval [0, 2] velocity over the Find (a) average velocity when (=3
4x+4- IFind (a) lim 5-5 lim of f() = 2x ~Ax-5 point Ihe graph Find the line horizontal. where the tan gent possition function s() = -1642+100 The time interval [0, 2] velocity over the Find (a) average velocity when (=3...
5 answers
86PART ONE PRIMARY FOCUS ON FACTORS UNDER ST10Table 3EX.9Funds RaisedApproach3500 3000 3000 OSLZ 2500 2300 2000 1500 1000 5003200 3200 2500 2500 2200 2000 1750 1500 1200 12002800 2000 009200 1200 1200 008200131021252205Note
86 PART ONE PRIMARY FOCUS ON FACTORS UNDER ST 10 Table 3EX.9 Funds Raised Approach 3500 3000 3000 OSLZ 2500 2300 2000 1500 1000 500 3200 3200 2500 2500 2200 2000 1750 1500 1200 1200 2800 2000 009 200 1200 1200 008 200 1310 2125 2205 Note...

-- 0.021384--