This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The dollar value of orders placed through a particular store catalog is found to be normally ... (Read 78 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jun 24, 2018
The dollar value of orders placed through a particular store catalog is found to be normally distributed with a standard deviation of 21.58. A sample of 30 orders averaged 81.25. What is the 90 confidence interval around this sample mean?
 
  A) 81.25  21.58
  B) 81.25  10.79
  C) 81.25  12.15
  D) 81.25  6.48

Question 2

What is the probability that in a particular month the office receives more than 310 orders?
 
  A) 0.7823
  B) 0.2826
  C) 0.7174
  D) 0.2177


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

D


darbym82

  • Member
  • Posts: 570
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

The 20 amino acids found in living organisms The 20 amino acids found in living organisms
An example of anatomical homology: homologous structures found in vertebrates. An example of anatomical homology: homologous structures found in vertebrates.
A jawbone found in the mainland Jenolan Caves A jawbone found in the mainland Jenolan Caves
The greatest bone mass is found around age 30 for both men and women, with the later decline being f The greatest bone mass is found around age 30 for both men and women, with the later decline being f
Standard Medical Record and Types of Reports Found in Record Standard Medical Record and Types of Reports Found in Record
Amino acids not found in proteins Amino acids not found in proteins
Video: Structure of a Ribosome

For a complete list of videos, visit our video library