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 28 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
YES! Correct, THANKS for helping me on my review

juliaf

  • Member
  • Posts: 344
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

A melanistic jaguar is a colour morph which occurs at about 6% frequency in populations. A melanistic jaguar is a colour morph which occurs at about 6% frequency in populations.
Species, subspecies, populations, and individuals. Species are reproductively isolated from one anot Species, subspecies, populations, and individuals. Species are reproductively isolated from one anot
Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator
Control of the cell cycle by cyclin-dependent kinases, and the checkpoints at which they operate Control of the cell cycle by cyclin-dependent kinases, and the checkpoints at which they operate
Molecular Genetics DNA picture matching question Molecular Genetics DNA picture matching question
A phylogenetic tree showing that all non-African human populations share a closer genetic relationsh A phylogenetic tree showing that all non-African human populations share a closer genetic relationsh
Video: Autonomic Nervous System Animation

For a complete list of videos, visit our video library