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

Author Question: The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ... (Read 60 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
on: Jun 20, 2018
The variance of the scores: 0, 1, 1, and 2 is
 
  A) .25
  B) .5
  C) .5
  D) 1

Question 2

The comparison distribution for a t test for independent means is a t distribution instead of a normal curve because
 
  A) tables are not available for the normal curve.
  B) the population variance is estimated.
  C) Z distributions were not used at the time the t test for independent means was invented.
  D) there are more degrees of freedom for two samples than for one.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

B


piesebel

  • Hero Member
  • *****
  • Posts: 565
Reply #2 on: Jun 20, 2018
Thank you!


manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304
Reply #3 on: Jun 20, 2018
Happy to help


« previous next »
 

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
The Normal Distribution of Scores for a Standardized Intelligence Test The Normal Distribution of Scores for a Standardized Intelligence Test
Iowa Gambling Task Scores Across Age Iowa Gambling Task Scores Across Age
Mean scores for Erikson’s stage VI (Intimacy) for two cohorts. Scores for both cohorts increase ... Mean scores for Erikson’s stage VI (Intimacy) for two cohorts. Scores for both cohorts increase ...
A Scatterplot of the Test Scores and Average Grades of 10 Students A Scatterplot of the Test Scores and Average Grades of 10 Students
IQ scores form what mathematicians call a normal distribution "bell curve" IQ scores form what mathematicians call a normal distribution "bell curve"
Video: Skin Cancer

For a complete list of videos, visit our video library