« previous next »

Author Question: The banking industry has suffered in recent years because of a high default rate on energy-related ... (Read 94 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jun 24, 2018
The banking industry has suffered in recent years because of a high default rate on energy-related loans. The standard deviation is 10,000 . How large a sample must you take from banking records to be 98 confident that your estimate for the amount of these defaults is within 1000 of the true mean loan amount?
 a. 567
  b. 233
  c. 240
  d. 543
  e. 890

Question 2

Because of the popularity of movies as an entertainment medium for college students, you plan to do a national study of the average cost of a movie ticket. If you assume that  = 0.50, what sample size would you have to take to be 95 confident that your estimate was within 0.25 of the true mean ticket prices?
 a. 15
  b. 7
  c. 8
  d. 4
  e. 16


mochi09

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Basic overview of energy and human life. Basic overview of energy and human life.
The salivary glands and related structures of the oral cavity. The salivary glands and related structures of the oral cavity.
The human eye, a product of 600 million years of evolution (Lamb, Collin, & Pugh, 2007). The human eye, a product of 600 million years of evolution (Lamb, Collin, & Pugh, 2007).
Extinction and extirpation per years Extinction and extirpation per years
Carbohydrates Are Energy-Containing Nutrients Carbohydrates Are Energy-Containing Nutrients
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Requirements for nervous signals

For a complete list of videos, visit our video library