Author Question: T-tests are used to test a sample mean when the population mean is unknown. Indicate whether the ... (Read 54 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
t-tests are used to test a sample mean when the population mean is unknown.
 
  Indicate whether the statement is true or false

Question 2

When the population standard deviation is known, z scores are appropriate to test a sample mean.
 
  Indicate whether the statement is true or false



bblaney

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

FALSE

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library