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 73 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

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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.
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ... The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
Indigenous Populations Indigenous Populations
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
Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae
Mendel’s Observations for Seven Monohybrid Traits in the F1 and F2 Generations Mendel’s Observations for Seven Monohybrid Traits in the F1 and F2 Generations
Video: Genetic terms Animation

For a complete list of videos, visit our video library