This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If five random samples are selected from a normal distribution, what will be the distribution of ... (Read 323 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Jun 24, 2018

  If five random samples are selected from a normal distribution, what will be the distribution of the means of these five samples?
 

  a.The distribution of the means will be normal.
  b.The distribution will depend on the standard error of the means.
  c.The distribution is unknown and will only be normal if the number of samples is much larger than five according to the Central Limit Theorem.
  d.The distribution of the means will not be normal since the sample size of five is very small.

Question 2


  The daily sales at a restaurant have an approximately normal distribution with a mean of 700 and a standard deviation of 120. A random sample of 10 days is taken and the mean is calculated. What is the probability that this mean will exceed 800?
 

  a.
  b.
  c.
  d.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jody Vaughn

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

correct: a

Answer to Question 2

correct: a


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Jun 24, 2018
Excellent

adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Chest Configurations, Normal Adult, Barrel Chest, Pectus Carinatum, Pectus Excavatum Chest Configurations, Normal Adult, Barrel Chest, Pectus Carinatum, Pectus Excavatum
Features of a normal 12-lead ECG. Features of a normal 12-lead ECG.
Selected Androgens and Anabolic Steroids Selected Androgens and Anabolic Steroids
Selected Hypothalamic and Pituitary Hormones Selected Hypothalamic and Pituitary Hormones
An oscillating needle 1 or 2 inches Hg below normal could indicate an incorrect air–fuel mixture ... An oscillating needle 1 or 2 inches Hg below normal could indicate an incorrect air–fuel mixture ...
The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010 The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library