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

Author Question: Suppose you want to calculate a confidence interval to estimate the population mean. What happens if ... (Read 68 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 24, 2018
Suppose you want to calculate a confidence interval to estimate the population mean. What happens if you want to be more than 95 confident in your results but you can't take another sample? (Assume data quality is not an issue.)
 a. You need a larger confidence level than 95.
  b. You need to use a multiplier that is larger than 2 to create your margin of error.
  c. You will have to live with a wider confidence interval.
  d. All of the above.

Question 2

No matter what type of population value (or combination of population values) is being estimated using a confidence interval, what items should you be watching for, in order to best assess the results?
 a. That the sample(s) selected represent the population(s).
  b. That the confidence level is clearly stated.
  c. That any real differences for which the researchers imply a causal relationship came from a randomized experiment.
  d. All of the above.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lou

  • Sr. Member
  • ****
  • Posts: 286
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


K@

  • Member
  • Posts: 608
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

School-age children are often independent and industrious, with a developing sense of self-confidenc School-age children are often independent and industrious, with a developing sense of self-confidenc
Population Density Population Density
Population Distribution Population Distribution
How to calculate simple interest (Part 5; r = I/Pt) How to calculate simple interest (Part 5; r = I/Pt)
The developing and emerging nations have high rates of population growth The developing and emerging nations have high rates of population growth
Relationship Between Income per Capita and Population Growth Relationship Between Income per Capita and Population Growth
Video: Role of complement proteins

For a complete list of videos, visit our video library