« previous next »

Author Question: What is the standard error of the difference? a. The standard deviation of the sample means b. ... (Read 96 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jun 20, 2018
What is the standard error of the difference?
 
  a. The standard deviation of the sample means
  b. The standard deviation of the sampling distribution of the mean
  c. The standard deviation of the sampling distribution of differences between means
  d. The pooled standard deviation from the populations from which the samples are drawn

Question 2

What is pooled variance?
 
  a. The weighted average of the sample variances
  b. The variance of the difference between the sample means
  c. The sum of the two sample variances
  d. The variance of the populations from which the samples were drawn


mirabriestensky

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jun 20, 2018
Answer to Question 1

c

Answer to Question 2

a


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?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Sample of an informed consent to perform an operation, sedation, anesthesia, and other medical servi Sample of an informed consent to perform an operation, sedation, anesthesia, and other medical servi
How to Factor a Difference of Squares How to Factor a Difference of Squares
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Eating Breakfast Means More Energy and Fewer Calories throughout the Day Eating Breakfast Means More Energy and Fewer Calories throughout the Day
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
Video: PET Scan Animation

For a complete list of videos, visit our video library