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 96 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?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

The Serial Reaction Time Task The Serial Reaction Time Task
Selected Drugs for Helminth and Protozoan Infections Selected Drugs for Helminth and Protozoan Infections
Physics: Power, Energy and Time Physics: Power, Energy and Time
Time-of-entry mapping Time-of-entry mapping
Selected hormones and their role in energy intake Selected hormones and their role in energy intake
Video: Febrile Seizure

For a complete list of videos, visit our video library