Author Question: The standard deviation for the lifetimes of washing machines is estimated to be 800 hours. What ... (Read 44 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
The standard deviation for the lifetimes of washing machines is estimated to be 800 hours. What sample size must be selected in order to be 97 confident that the margin of error will not exceed 50 hours?

Question 2

What steps of the problem solving process are involved in decision making?



Harbringer

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

1206

Answer to Question 2

Answer not provided.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library