Author Question: Other things being equal, as the confidence level for a confidence interval increases, the width of ... (Read 105 times)

chads108

  • Hero Member
  • *****
  • Posts: 507
Other things being equal, as the confidence level for a confidence interval increases, the width of the interval increases.
 
  Indicate whether the statement is true or false

Question 2

You were told that the mean score on a statistics exam is 75 with the scores normally distributed. In addition, you know the probability of a score between 55 and 60 is 4.41 and that the probability of a score greater than 90 is 6.68. What is the probability of a score between 75 and 90?
 
  What will be an ideal response?



at

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

TRUE

Answer to Question 2

43.32 or 0.4332



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

For a complete list of videos, visit our video library