« previous next »

Author Question: In a large university, 20 of the students are Business majors. A random sample of 100 students is ... (Read 89 times)

dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
on: Jun 24, 2018
In a large university, 20 of the students are Business majors. A random sample of 100 students is selected, and their majors are recorded.
 a. Compute the standard error of the proportion.
  b. What is the probability that the sample contains at least 12 Business majors?
  c. What is the probability that the sample contains less than 15 Business majors?
  d. What is the probability that the sample contains between 12 and 14 Business majors?

Question 2

Assume z is a standard normal random variable. Then P(1.96  z  1.4) equals _____.
 a. .8942
  b. .0558
  c. .475
  d. .4192


Anonymous

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .04
b. .9772
c. .1056
d. .044

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Large male size and mating success. Large male size and mating success.
The large orb web of Araneus diadematus (European garden spider). The large orb web of Araneus diadematus (European garden spider).
Male lying supine with large ecchymosis on lateral rib cage and shoulder. Male lying supine with large ecchymosis on lateral rib cage and shoulder.
Sample Exercise Program for Healthy Older Adults Sample Exercise Program for Healthy Older Adults
Sample Items from the Brief Multidimensional Measure of Religiousness/Spirituality (BMMRS) Sample Items from the Brief Multidimensional Measure of Religiousness/Spirituality (BMMRS)
(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur (left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library