« previous next »

Author Question: At a computer manufacturing company, the actual size of computer chips is normally distributed with ... (Read 129 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
on: Jun 24, 2018
At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. Above what value do 2.5 of the sample means fall?
 
  What will be an ideal response?

Question 2

If a particular set of data is approximately normally distributed, we would find that approximately
 
  A) 4 of every 5 observations would fall between 1.28 standard deviations around the mean.
  B) 19 of every 20 observations would fall between 2 standard deviations around the mean.
  C) 2 of every 3 observations would fall between 1 standard deviation around the mean.
  D) All of the above.


jointhecircus

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jun 24, 2018
Answer to Question 1

1.057

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Size varies greatly among horse breeds, as with this full-sized horse and a miniature horse. Size varies greatly among horse breeds, as with this full-sized horse and a miniature horse.
Electroencephalography (EEG). To perform the EEG, electrodes attached to the patient’s head pick up Electroencephalography (EEG). To perform the EEG, electrodes attached to the patient’s head pick up
The Effect of Group Size on Relationships The Effect of Group Size on Relationships
Total Fertility Rate in Japan: Actual versus Forecast Total Fertility Rate in Japan: Actual versus Forecast
Your company advertises all prices on the menu board as a final price, including HST of 13%. A ... Your company advertises all prices on the menu board as a final price, including HST of 13%. A ...
Bill Size in African Finches Bill Size in African Finches
Video: Embryonic development - Week 3

For a complete list of videos, visit our video library