Author Question: A simple random sample of 144 observations was taken from a large population. The sample mean and ... (Read 183 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
A simple random sample of 144 observations was taken from a large population. The sample mean and the standard deviation were determined to be 1234 and 120 respectively. The standard error of the mean is
 a. 1234120.
   b. 120.
   c. 1440.
   d. 10.

Question 2

In a multiple regression model, the error term  is assumed to be a random variable with a mean of
 a. zero.
  b. -1.
  c. 1.
  d. any value.



zogaridan

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

d

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

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.

For a complete list of videos, visit our video library