« previous next »

Author Question: What is data warehouse? ... (Read 17 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Aug 1, 2018
What is data warehouse?

Question 2

If a sample containing 20 observations is taken from a normally distributed population and a 90 confidence estimate for is needed, the appropriate t-score is:
 a. 2.12.
  b. 1.746.
  c. 2.131.
  d. 1.729.
  e. 2.602.


xiazhe

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Aug 1, 2018
Answer to Question 1

Data warehouse is a large collection of data from inside and outside the company, put together for the express purpose of using sophisticated analytical techniques to uncover patterns and discover interrelationships within the data.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Cross-sectional data showing that the amount of effort spent on personal health care increases with Cross-sectional data showing that the amount of effort spent on personal health care increases with
Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s
Data Used to Analyze Productivity in Country 1 and Country 2 Data Used to Analyze Productivity in Country 1 and Country 2
Data management questions Data management questions
Chi-Square Analysis of Mendel’s Trihybrid-Cross Data Chi-Square Analysis of Mendel’s Trihybrid-Cross Data
Ribosome structure and tRNA-binding sites interpreted from cryo-EM–generated data Ribosome structure and tRNA-binding sites interpreted from cryo-EM–generated data
Video: Role of ATP in muscle movement

For a complete list of videos, visit our video library