« previous next »

Author Question: When the level of confidence increases, the confidence interval _____. a. stays the same b. ... (Read 77 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
on: Jun 24, 2018
When the level of confidence increases, the confidence interval _____.
 a. stays the same
  b. becomes wider
  c. becomes narrower
  d. cannot be determined from the information given

Question 2

The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces. What percentage of items will weigh between 6.4 and 8.9 ounces?
 a. .1145
  b. .2881
  c. .1736
  d. .4617


kaykay69

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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?

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

Three routes of tissue-level transport in plants: transmembrane, symplastic, and apoplastic. Three routes of tissue-level transport in plants: transmembrane, symplastic, and apoplastic.
The mortality rate in the United States increases with age and is lower for women than men at every ... The mortality rate in the United States increases with age and is lower for women than men at every ...
Some vehicles use a surge tank, which is located at the highest level of the cooling system, with ... Some vehicles use a surge tank, which is located at the highest level of the cooling system, with ...
The areas in which reading-associated increases in activity were observed in the fMRI study of ... The areas in which reading-associated increases in activity were observed in the fMRI study of ...
World Mean Sea-Level Temperatures in January World Mean Sea-Level Temperatures in January
The number of phenotypic classes in the F2 generation increases as the number of genes controlling t The number of phenotypic classes in the F2 generation increases as the number of genes controlling t
Video: Chemical Messengers Animation

For a complete list of videos, visit our video library