« previous next »

Author Question: The variance is equal to the _____. a. absolute value of the standard deviation b. squared value ... (Read 70 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Jun 24, 2018
The variance is equal to the _____.
 a. absolute value of the standard deviation
  b. squared value of the standard deviation
  c. square root of the standard deviation
  d. inverse value of the standard deviation

Question 2

There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all the students is 24 years with a standard deviation of 9 years. A random sample of 36 students is selected.
 a. Determine the standard error of the mean.
  b. What is the probability that the sample mean will be larger than 19.5?
  c. What is the probability that the sample mean will be between 25.5 and 27 years?


Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

a. 1.5
b. 0.9986
c. 0.1359


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Standard Model of Elementary Particles Standard Model of Elementary Particles
Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ... Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ...
How to write a quadratic equation in standard form when a graph is given How to write a quadratic equation in standard form when a graph is given
A blade and assorted plates for a standard grinder A blade and assorted plates for a standard grinder
The expected value for a binomial probability distribution is _____. The expected value for a binomial probability distribution is _____.
Video: Exercise and cardiac output

For a complete list of videos, visit our video library