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

Author Question: A market researcher randomly selects 100 homeowners under 60 years of age and 200 homeowners over 60 ... (Read 113 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jul 24, 2018
A market researcher randomly selects 100 homeowners under 60 years of age and 200 homeowners over 60 years of age. What sampling technique was used?
 
  A) stratified
  B) simple random
  C) cluster
  D) convenience
  E) systematic

Question 2

A customer service firm receives an average of three calls per hour on its toll-free number. For any given hour, find the probability that it will receive at least three calls. Use the Poisson distribution.
 
  A) 0.5768 B) 0.1891 C) 0.4232 D) 0.6138


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pami445

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


Shelles

  • Member
  • Posts: 582
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

aruss1303

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old. The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
Changes in Synaptic Density From Birth to Age 2 Synaptic connections increase throughout the first Changes in Synaptic Density From Birth to Age 2 Synaptic connections increase throughout the first
Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ... Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ...
A mortgage loan of $132,000 at 6% compounded semiannually is to be amortized over 25 years by ... A mortgage loan of $132,000 at 6% compounded semiannually is to be amortized over 25 years by ...
Earth 430 Million Years Ago Earth 430 Million Years Ago
Video: Carbohydrate digestion (brush border enzymes, end products) & Carb absorption (fructose, galactose)

For a complete list of videos, visit our video library