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

Author Question: A market researcher randomly selects 200 homeowners under 45 years of age and 200 homeowners over 45 ... (Read 163 times)

fahad

  • Hero Member
  • *****
  • Posts: 570
on: Jul 25, 2018
A market researcher randomly selects 200 homeowners under 45 years of age and 200 homeowners over 45 years of age. What sampling technique was used?
 
  A) stratified
  B) systematic
  C) simple random
  D) convenience
  E) cluster

Question 2

The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 2.5 to 4.5 millimeters. What is the probability that a randomly selected ball bearing has a diameter greater than 3.
 
  3 millimeters?
  A) 0.7333 B) 1.5 C) 0.4714 D) 0.6


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

6ana001

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

D


fahad

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Jul 25, 2018
Thanks


6ana001

  • Sr. Member
  • ****
  • Posts: 311
Reply #3 on: Jul 25, 2018
Welcome :)


« previous next »
 

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
Walter Thompson saw his assets evaporate during the stock market collapse in 1929. Desperate for ... Walter Thompson saw his assets evaporate during the stock market collapse in 1929. Desperate for ...
Step-Wise Treatment of Asthma in Children > 12 Years of Age and Adults Step-Wise Treatment of Asthma in Children > 12 Years of Age and Adults
Juan's Software Service Company is in a perfectly competitive market. Juan has total fixed ... Juan's Software Service Company is in a perfectly competitive market. Juan has total fixed ...
Video: Blood Flow Through the Kidneys

For a complete list of videos, visit our video library