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

Author Question: Suppose a manufacturer, Company B, produces lawnmowers and a researcher is interested in the ... (Read 146 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Jul 24, 2018

  Suppose a manufacturer, Company B, produces lawnmowers and a researcher is interested in the proportion of all lawnmowers purchased that are made by this manufacturer. A random sample of 150 individuals who purchased lawnmowers was taken and it was found that 42 of them purchased lawnmowers produced by Company B. Which of the following is an unbiased estimate of the population proportion of all lawnmowers purchased that are produced by Company B?
 

  a.0.72
  b.The population proportion is not known so an unbiased estimate cannot be determined.
  c.0.28
 

d.42
 
 



Question 2


  Which of the following must be true for a point estimator, , to be an unbiased estimator ?
 

  a.
  b.The variance of the sampling distribution of equals .
  c.
 

d.
 
 



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Alyson.hiatt@yahoo.com

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 24, 2018
Answer to Question 1

correct: c

Answer to Question 2

correct: d


tth

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


Alyson.hiatt@yahoo.com

  • Sr. Member
  • ****
  • Posts: 354
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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.

Interested in social reform, Harriet Martineau (1802–1876) turned to sociology, where she ... Interested in social reform, Harriet Martineau (1802–1876) turned to sociology, where she ...
Morris and Company, Sussex Rush-Seated Chairs. Morris and Company, Sussex Rush-Seated Chairs.
(a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces (a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces
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 ...
Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ... Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ...
One generation of random mating produces Hardy–Weinberg equilibrium One generation of random mating produces Hardy–Weinberg equilibrium
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library