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 103 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?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

X chromosome inactivation in female mammals produces the Barr Body. X chromosome inactivation in female mammals produces the Barr Body.
Faulty outlooping produces lambda phage containing bacterial DNA Faulty outlooping produces lambda phage containing bacterial DNA
The Stillwater Mining Company The Stillwater Mining Company
Helgeson Company has identified the following items for possible inclusion when taking a ... Helgeson Company has identified the following items for possible inclusion when taking a ...
Suppose a country imports televisions. The country's supply and demand curves are shown in ... Suppose a country imports televisions. The country's supply and demand curves are shown in ...
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 ...
Video: How Hemoglobin Picks Up and Delivers Oxygen

For a complete list of videos, visit our video library