Author Question: The mean of a standard normal probability distribution a. is always equal to zero. b. can be any ... (Read 82 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
The mean of a standard normal probability distribution
 a. is always equal to zero.
   b. can be any value as long as it is positive.
   c. can be any value.
   d. is always greater than zero.

Question 2

In the past, 35 of the students at ABC University were in the Business College, 35 of the students were in the Liberal Arts College, and 30 of the students were in the Education College. To see whether or not the proportions have changed, a sample of 300 students from the university was taken. Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College. Using  = .05, the conclusion of the test is that the
 a. null hypothesis cannot be rejected.
  b. proportions have not changed significantly.
  c. proportions follow normal distribution.
  d. Marascuilo procedure is more applicable.



Anton

  • Sr. Member
  • ****
  • Posts: 302
Answer to Question 1

a

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

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

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Medication errors are three times higher among children and infants than with adults.

For a complete list of videos, visit our video library