Author Question: What is the probability that X is farther than one standard deviation from the mean? What will be ... (Read 49 times)

rl

  • Hero Member
  • *****
  • Posts: 579
What is the probability that X is farther than one standard deviation from the mean?
 
  What will be an ideal response?

Question 2

In the sign test applications, the normal approximation to the binomial distribution may be used whenever the number of nonzero differences exceeds:
 
  A) 5
  B) 10
  C) 20
  D) 15



kalskdjl1212

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

   = 1  6.333 , or -5.633 to 7.633, so X would have to take on the values -5, 0, or 5 to be in this interval, and the probability of this occurring is 0.3 + 0.1 + 0.3 = 0.7. The probability that X is outside this interval is 1 - 0.7 = 0.3

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

For a complete list of videos, visit our video library