This topic contains a solution. Click here to go to the answer

Author Question: Sampling error can be eliminated if the sampling is done properly. Indicate whether the statement ... (Read 93 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
Sampling error can be eliminated if the sampling is done properly.
 
  Indicate whether the statement is true or false

Question 2

A study has indicated that the sample size necessary to estimate the average electricity use by residential customers of a large western utility company is 900 customers.
 
  Assuming that the margin of error associated with the estimate will be 30 watts and the confidence level is stated to be 90 percent, what was the value for the population standard deviation?A) 265 watts
  B) Approximately 547.1 watts
  C) About 490 watts
  D) Can't be determined without knowing the size of the population.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

FALSE

Answer to Question 2

B




jc611

  • Member
  • Posts: 552
Reply 2 on: Jun 24, 2018
Gracias!


apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

For a complete list of videos, visit our video library