This topic contains a solution. Click here to go to the answer

Author Question: Calculate the sample mean and sample standard deviation. What will be an ideal ... (Read 73 times)

bclement10

  • Hero Member
  • *****
  • Posts: 560
Calculate the sample mean and sample standard deviation.
 
  What will be an ideal response?

Question 2

Explain cluster sampling and state its advantages.
 
  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

mfedorka

  • Sr. Member
  • ****
  • Posts: 324
Answer to Question 1

= 8.82 and s = 2.301

Answer to Question 2

In cluster sampling, the N individuals or items in the population are divided into several clusters so that each cluster is a representative of the entire population. A random sample of clusters is then taken, and all individuals or items in each chosen cluster are then studied. Clusters can be naturally occurring designations, such as counties, election districts, city blocks, apartment buildings, or families. Cluster sampling methods can be more cost-effective than simple random sampling methods, particularly if the population is spread over a wide geographic region. However, cluster sampling methods tend to be less efficient than both simple random sampling methods and stratified sampling methods, and often require a larger overall sample size to obtain results as precise as those obtained from the more efficient procedures.




bclement10

  • Member
  • Posts: 560
Reply 2 on: Jun 24, 2018
Gracias!


dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Excellent

 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

For a complete list of videos, visit our video library