This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which one of these variables is a binomial random variable? a. Time it takes a randomly selected ... (Read 120 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jul 24, 2018
Which one of these variables is a binomial random variable?
 a. Time it takes a randomly selected student to complete a multiple choice exam.
  b. Number of textbooks a randomly selected student bought this term.
  c. Number of women taller than 68 inches in a random sample of 5 women.
  d. Number of CDs a randomly selected person owns.

Question 2

An Anti-Smoking organization wishes to determine what percentage of students in the state of Pennsylvania smoke cigarettes at least once a day. The organization will randomly sample 2400 students. In the sample they obtain, 450 students say they smoke cigarettes at least once a day. Calculate a 95 confidence interval for the proportion of all students in the state of Pennsylvania that smoke cigarettes at least once a day.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tranoy

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

(0.172, 0.203)


Shelles

  • Hero Member
  • *****
  • Posts: 582
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


tranoy

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Adults in late middle adulthood frequently look forward to spending more time with their partner Adults in late middle adulthood frequently look forward to spending more time with their partner
Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab
If you want to show differences between items at the same time, a bar graph is more effective than a If you want to show differences between items at the same time, a bar graph is more effective than a
Selected Neurocognitive Disorders Resulting in Dementia Selected Neurocognitive Disorders Resulting in Dementia
Selected Combination Oral Antidiabetic Drugs Selected Combination Oral Antidiabetic Drugs
Different time courses of hypersensitivity reactions. Different time courses of hypersensitivity reactions.
Video: Eczema

For a complete list of videos, visit our video library