« previous next »

Author Question: In an analysis of variance with a between-groups population variance estimate of 30 and a ... (Read 137 times)

sjones

  • Hero Member
  • *****
  • Posts: 520
on: Jun 20, 2018
In an analysis of variance with a between-groups population variance estimate of 30 and a within-groups estimate of 25, the F ratio is
 
  A) 25 / (3025) = 5.00
  B) (3025) /30 = 0.17
  C) 25/30 = 0.83
  D) 30/25 = 1.20

Question 2

Ann conducts a study, and finds that the estimated population variances for the groups are 12.8, 16.3, 15.1, and 19.9. What is the within-groups estimate of the population variance?
 
  A) (12.82 + 16.32 + 15.12 + 19.92) / (4  1) = 351.18.
  B) (12.82 + 16.32 + 15.12 + 19.92) / 4 = 263.39.
  C) (12.8 + 16.3 + 15.1 + 19.9) / (4  1) = 21.37.
  D) (12.8 + 16.3 + 15.1 + 19.9) / 4 = 16.03.


kishoreddi

  • Sr. Member
  • ****
  • Posts: 329
    • Your online Help in Biology and chemistry
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Clinical decision making for groups Clinical decision making for groups
Primary Groups: Families Primary Groups: Families
In plant fossils, leaf margin is used to estimate mean annual temperature In plant fossils, leaf margin is used to estimate mean annual temperature
Population Density versus Economic Growth Population Density versus Economic Growth
An electropherogram showing the results of a DNA profile analysis An electropherogram showing the results of a DNA profile analysis
GENETIC ANALYSIS GENETIC ANALYSIS
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library