« previous next »

Author Question: In assessing the normality of data, why is a normal probability plot especially advantageous for ... (Read 85 times)

big1devin

  • Hero Member
  • *****
  • Posts: 583
on: Jul 25, 2018
In assessing the normality of data, why is a normal probability plot especially advantageous for small samples?
 
  What will be an ideal response?

Question 2

The scores from a state standardized test have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the Empirical Rule to find the percentage of students with scores between 70 and 130.
 
  A) 95 B) 100 C) 99.7 D) 68


stanleka1

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 25, 2018
Answer to Question 1

Because it is especially difficult to assess the shape of a histogram when the data set is small but it is relatively easy to judge whether a string of data points forms a straight line regardless of how many points you have (as long as you have at least three or so).

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ... An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ...
Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ... Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ...
A) Normal bronchiole and (B) bronchiole constricted in asthma attack. A) Normal bronchiole and (B) bronchiole constricted in asthma attack.
Neutrophils in a normal blood smear. Neutrophils in a normal blood smear.
Lineweaver–Burk plot for mixed inhibition kinetics Lineweaver–Burk plot for mixed inhibition kinetics
The Hfr chromosome time-of-entry map is assembled from the recombinant data The Hfr chromosome time-of-entry map is assembled from the recombinant data
Video: Otitis Media

For a complete list of videos, visit our video library