Cardiorespiratory fitness is w

Cardiorespiratory fitness is widely recognized as a majorcomponent of overall physical well-being. Direct measurement ofmaximal oxygen uptake (VO2max) is the single best measure of suchfitness, but direct measurement is time-consuming and expensive. Itis therefore desirable to have a prediction equation for VO2max interms of easily obtained quantities. A sample is taken andvariables measured are age (years), time necessary to walk 1 mile(mins), and heart rate at the end of the walk (bpm) in addition tothe VO2 max uptake. The equation from a multiple regression is(V02) = 0.017*(age) – 0.028*(HR) + 0.017*(time) + 3.483. If aperson is 29 years old, blood pressure of 130 bpm, and a walkingtime of 13 minutes, what is his/her expected maximum oxygenuptake?

part A options:

1)

0.557

2)

-2.926

3)

-6.409

4)

We do not know the observations inthe data set, so we cannot answer that question.

5)

5.102

Suppose that a researcher studying the weight of female collegeathletes wants to predict the weights based on height, measured ininches, and the percentage of body fat of an athlete. Theresearcher calculates the regression equation as (weight) =3.979*(height) + 0.85*(percent body fat) – 87.814. If a femaleathlete is 67 inches tall and has a 20 percentage of body fat, whatis her expected weigh

Part B options:

1)

371.407

2)

195.779

3)

283.593

4)

48.716

5)

We do not know the observations inthe data set, so we cannot answer that question.

A trucking company considered a multiple regression model forrelating the dependent variable of total daily travel time for oneof its drivers (hours) to the predictors distance traveled (miles)and the number of deliveries of made. After taking a random sample,a multiple regression was performed and the equation is (time) =0.076*(distance) + 0.579*(deliveries) – 0.466. Suppose for a givendriver’s day, he is scheduled to drive 58.908 miles and make 10.97stops. Suppose it took him 14.302 hours to complete the trip. Whatis the residual based on the regression model?

Part C options:

1)

We do not know the observations inthe data set, so we cannot answer that question.

2)

3.9394

3)

-3.4734

4)

-48.5454

5)

-3.9394

Suppose that a researcher studying the weight of female collegeathletes wants to predict the weights based on height, measured ininches, the percentage of body fat of an athlete, and age. Theresearcher calculates the regression equation as (weight) =4.08*(height) + 1.103*(percent body fat) – 0.995*(age) – 82.074. Ifa female athlete is 68.575 inches tall, has a 23.901 percentage ofbody fat, is 22.696 years old, and has a weight of 167.763, theresidual is -33.7293. Choose the correct interpretation of theresidual.

Part D options:

1)

The height of the athlete is33.7293 inches larger than what we would expect.

2)

The weight of the athlete is33.7293 pounds greater than what we would expect.

3)

The weight of the athlete is33.7293 pounds less than what we would expect.

4)

The weight of the athlete is167.763 pounds less than what we would expect.

5)

The height of the athlete is33.7293 inches less than what we would expect.

Answer:

Part A

We are given

(VO2) = 0.017*age – 0.028*HR + 0.017*time + 3.483

Age = 29

HR = 130

Time = 13

(VO2) = 0.017*29 – 0.028*130 + 0.017*13 + 3.483

(VO2) = 0.557

Correct Answer: 1) 0.557

Part B

We are given

(Weight) = 3.979*(height) + 0.85*(percent body fat) – 87.814

Height = 67

Percent body fat = 20%

(Weight) = 3.979*67 + 0.85*20 – 87.814

(Weight) = 195.779

Correct Answer: 2) 195.779

Part C

Regression equation is given as below:

(time) = 0.076*(distance) + 0.579*(deliveries) – 0.466

We are given

Distance = 58.908

Deliveries = 10.97

Observed time = 14.302 hours

Predicted time = 0.076*(distance) + 0.579*(deliveries) -0.466

Predicted time = 0.076*58.908 + 0.579*10.97 – 0.466

Predicted time = 10.36264

Residual = Observed value – Predicted value

Residual = 14.302 – 10.36264 = 3.93936

Residual = 3.9394

Correct Answer: 2) 3.9394

Part D

Correct Answer: 3) The weight of the athlete is 33.7293 poundsless than what we would expect.

Explanation: We know that the residual is the difference betweenobserved values and predicted or expected value. A negative valueof residual indicates a less observed value than what we wouldexpect.


 
"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!"
Calculate the price
Make an order in advance and get the best price
Pages (550 words)
$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with brilliantassignmenthelp.com
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend
OUR GIFT TO YOU
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat
Close

Sometimes it is hard to do all the work on your own

Let us help you get a good grade on your paper. Get professional help and free up your time for more important courses. Let us handle your;

  • Dissertations and Thesis
  • Essays
  • All Assignments

  • Research papers
  • Terms Papers
  • Online Classes