This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the benefit of matching observations for two dependent samples from two populations as ... (Read 77 times)

crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
on: Jun 24, 2018
What is the benefit of matching observations for two dependent samples from two populations as opposed to treating the two samples as independent?
 
  What will be an ideal response?

Question 2

Find the probability that X is greater than 58.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ilianabrrr

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 24, 2018
Answer to Question 1

Using the matched pair procedure for dependent samples removes some of the variability in the sample data and provides a smaller confidence interval when compared to the independent sample procedure. For instance, when comparing the speed of a new tennis ball to a current ball, we can have each tennis player serve with the new ball and the current ball and measure the difference. By performing the matched pair procedure on the difference for each tennis player, we are removing the variability of speed due to individual differences between the tennis players. Eliminating this variability produces a smaller confidence interval and generates more precise results.

Answer to Question 2

P(X > 58 ) = P( Z > 1.28 ) = 0.50 - 0.3997 = 0.1003


crazycityslicker

  • Member
  • Posts: 537
Reply 2 on: Jun 24, 2018
:D TYSM

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Clinal maps of ABO allele distributions in the indigenous populations of the world. Clinal maps of ABO allele distributions in the indigenous populations of the world.
Head binding, or artificial deformation, was used by some populations as a sign of identity. Head binding, or artificial deformation, was used by some populations as a sign of identity.
Structure of molybdenum-dependent nitrogenase from Azotobacter vinelandii Structure of molybdenum-dependent nitrogenase from Azotobacter vinelandii
The amount of genetic variation within populations is far greater than the variation between populat The amount of genetic variation within populations is far greater than the variation between populat
Movement of acorns by blue jays allows gene flow between oak populations Movement of acorns by blue jays allows gene flow between oak populations
Directional artificial selection favoring the AdhF allele in experimental Drosophila populations. Directional artificial selection favoring the AdhF allele in experimental Drosophila populations.
Video: Role of the urinary system - acidosis and alkalosis

For a complete list of videos, visit our video library