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 123 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?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Random Random
Refraction Through Uniform and Variable Thickness Glasses Refraction Through Uniform and Variable Thickness Glasses
Selected Estrogens and Progestins Selected Estrogens and Progestins
Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued) Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued)
Selected Adjuncts to Anesthesia Selected Adjuncts to Anesthesia
A mother invests $9000 in a bank account at the time of her daughter's birth. The interest is ... A mother invests $9000 in a bank account at the time of her daughter's birth. The interest is ...
Video: Carpal Tunnel Syndrome

For a complete list of videos, visit our video library