Author Question: The mean of a standard normal probability distribution a. is always equal to zero. b. can be any ... (Read 90 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?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

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

For a complete list of videos, visit our video library