« previous next »

Author Question: When the level of confidence increases, the confidence interval _____. a. stays the same b. ... (Read 98 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?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Mechanisms of pain at the nociceptor level Mechanisms of pain at the nociceptor level
Entry level nurse competencies Entry level nurse competencies
Shy children often have a high arousal level in novel social situations. Over time, parents can help ... Shy children often have a high arousal level in novel social situations. Over time, parents can help ...
People using walkers typically have a high level of mobility impairment. People using walkers typically have a high level of mobility impairment.
Kyoto Protocol encourages industry to innovate and reduce the level of emissions Kyoto Protocol encourages industry to innovate and reduce the level of emissions
Sea-Level Pressure Sea-Level Pressure
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library