Author Question: One way to reduce the margin of error in a confidence interval estimate is to lower the level of ... (Read 93 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
One way to reduce the margin of error in a confidence interval estimate is to lower the level of confidence.
 
  Indicate whether the statement is true or false

Question 2

If a stratified random sample is to be conducted, which of the following is true?
 
  A) The population will be broken down into subgroups called strata.
  B) Each subgroup should contain items that are homogeneous with respect to the characteristic of interest.
  C) If effective, the total required sample size should be less than that which would be needed if a simple random sample were selected.
  D) All of the above.



Sophiapenny

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

TRUE

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

For a complete list of videos, visit our video library