« previous next »

Author Question: The variance is equal to the _____. a. absolute value of the standard deviation b. squared value ... (Read 68 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?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Rule of Nines. A method for determining percentage of body burned. Each different colored section re Rule of Nines. A method for determining percentage of body burned. Each different colored section re
Standard Precautions for the Care of all Patients in All Health Care Settings Standard Precautions for the Care of all Patients in All Health Care Settings
Standard Precautions for the Care of all Patients in All Health Care Settings Standard Precautions for the Care of all Patients in All Health Care Settings
Absolute Stability Absolute Stability
A karyotype arranges the chromosomes in a standard format A karyotype arranges the chromosomes in a standard format
Video: Digestion Animation

For a complete list of videos, visit our video library