This topic contains a solution. Click here to go to the answer

Author Question: For each of the following statements, determine if they are true or false. If events D and E are ... (Read 53 times)

jake

  • Hero Member
  • *****
  • Posts: 538
For each of the following statements, determine if they are true or false. If events D and E are known to be mutually exclusive, then P(DE) = 0.
 a. True
  b. False

Question 2

A randomly selected sample of 400 students at a university with 15-week semesters was asked whether or not they think the semester should be shortened to 14 weeks (with longer classes). Forty-six percent of the 400 students surveyed answered yes. If the sample consisted of 300 students instead of 400 students, but the sample proportion of students who answered yes to the question was still 46, would the margin of error be smaller or larger?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuate

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

A

Answer to Question 2

larger




jake

  • Member
  • Posts: 538
Reply 2 on: Jul 24, 2018
Gracias!


parker125

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

 

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?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

For a complete list of videos, visit our video library