« previous next »

Author Question: Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative ... (Read 151 times)

olgavictoria

  • Hero Member
  • *****
  • Posts: 528
on: Jun 24, 2018
Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative frequency method for computing probability is used, the probability that the next customer will purchase a computer is _____.
 a. .25
  b. .50
  c. 1
  d. .75

Question 2

Computer Services, Inc wants to determine a confidence interval for the average CPU time of their teleprocessing transactions. A sample of 64 transactions yielded a mean of 6 seconds with a standard deviation of .8 seconds. Determine a 98 confidence interval for the average CPU time of all the teleprocessing transactions.


makaylafy

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

5.761 to 6.239 seconds (rounded)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

A computer rendition of biological chromosomes (biology) A computer rendition of biological chromosomes (biology)
Double-label fluorescence microscopy can visualize the relative distributions of Double-label fluorescence microscopy can visualize the relative distributions of
The microchip is transforming our lives—the way we shop, spend our leisure, relate to one another, ... The microchip is transforming our lives—the way we shop, spend our leisure, relate to one another, ...
Sequential blending uses a computer to calculate the correct ratio as well as the prescribed order ... Sequential blending uses a computer to calculate the correct ratio as well as the prescribed order ...
This label on a Toyota Camry hybrid shows the relative smog-producing emissions, but this does not ... This label on a Toyota Camry hybrid shows the relative smog-producing emissions, but this does not ...
How to reflect the quadratic function relative to the x-axis How to reflect the quadratic function relative to the x-axis
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library