Author Question: The t-test for the mean difference between 2 related populations assumes that the respective: A) ... (Read 106 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
The t-test for the mean difference between 2 related populations assumes that the respective:
 
  A) sample sizes are equal.
  B) sample variances are equal.
  C) populations are approximately normal or sample sizes are large.
  D) All of the above

Question 2

The general format for a confidence interval is:
 
  A) point estimate  z (standard deviation).
  B) point estimate  (critical value)(standard error).
  C) margin of error  (confidence coefficient) (standard error).
  D) point estimate  (critical value)(standard deviation)



Jbrasil

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

C

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Jbrasil

  • Sr. Member
  • ****
  • Posts: 337

 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Cyanide works by making the human body unable to use oxygen.

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.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

For a complete list of videos, visit our video library