This topic contains a solution. Click here to go to the answer

Author Question: The ________ change every time a new sample is taken. a.variables b.population parameters ... (Read 112 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580

  The ________ change every time a new sample is taken.
 

  a.variables
  b.population parameters
  c.sample statistics
 

d.distributions
 
 



Question 2


  Suppose the income of recent doctoral graduates who become professors at a university is approximately normally distributed with a mean income of 42,000 and a standard deviation of 8000. If a random sample of size 100 is taken and the mean is calculated, what is the probability that this mean value will be between 43,500 and 45,000?
 

  a.0.072
  b.0.969
  c.0.0309
 

d.0.9999
 
 




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

correct: c

Answer to Question 2

correct: c





 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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 types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

For a complete list of videos, visit our video library