Author Question: What is a null hypothesis?[br][br][b][color=#A83E49]Question 2[/color][/b][br][br]It has been ... (Read 107 times)

drink

  • Hero Member
  • *****
  • Posts: 554
What is a null hypothesis?

Question 2

It has been claimed that no more than 3 of the units coming off an assembly line are defective. Will this test be a one-tail - left, a one tail - right, or a two-tail? Explain your answer.



nmyers

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

A statement about the value of a population parameter; it is put up for testing in the face of numerical evidence.

Answer to Question 2

Right-tail; This is a one-tail test since this is a directional claim (no more than 3). It is a right-tail test since the alternative hypothesis has a greater-than sign. The rejection region is located in the right tail of the standard normal curve.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

For a complete list of videos, visit our video library