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 53 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
Excellent

ktidd

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

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.

The 20 amino acids found in living organisms The 20 amino acids found in living organisms
An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina. An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ... This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ...
ELEMENTS OF ARCHITECTURE: Roman Architectural Orders ELEMENTS OF ARCHITECTURE: Roman Architectural Orders
Phosphorus in Phospholipids Phosphorus makes up part of the phospholipids found in cell membranes Phosphorus in Phospholipids Phosphorus makes up part of the phospholipids found in cell membranes
A fictional element named Nivadium is found to have three naturally occurring is A fictional element named Nivadium is found to have three naturally occurring is
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library