Margin of error in half

Assignment Help Basic Statistics
Reference no: EM131725913

When making a CI for a mean, by what factor must you increase the sample size in order to cut the margin of error in half?

Reference no: EM131725913

Questions Cloud

Explain the common law background of the fourth amendment : Write a 350- to 700-word executive summary in which you define and explain the common law background of the Fourth Amendment.
How many different ways could he fill out : If there are 10 colleges he is? considering, how many different ways could he fill out the score report? form?
Discuss the nonverbal communication : Students must describe the environment and the people being observed, i.e., age, gender, dress, etc. Discuss the nonverbal communication.
What caused the perceived need for the law or change in law : What caused the perceived need for the law or change in the law?If laws were passed was the goal they intended to achieve reached?
Margin of error in half : When making a CI for a mean, by what factor must you increase the sample size in order to cut the margin of error in half?
Discuss environmental problems we face in the world today : Discuss environmental problems we face in the world today. Problems include: Air and water pollution, global warming, species and ecosystem biodiversity.
Ci for a population mean : CI for a population mean if the population standard deviation is thought to be about 7.553 and the with of the interval is to be no more than 1.2.
How researchers could conduct a double-blind experiment : Echinacea is an herb that may help to prevent colds and flu. Explain how researchers could conduct a double-blind, double-dummy experiment to compare.
Calculate the minimum sample size required : Calculate the minimum sample size required to construct a 95% CI for a population mean if the population standard deviation.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Independent and dependent variables of experimental study

Oxytocin is a naturally occurring brain chemical that is nicknamed the "love hormone" because it seems to play a role in the formation of social relationships such as mating pairs and child-parent bonding.

  Estimate the regression equation to predict the value

Using an appropriate hypothesis test, at a 5% level of significance, can you conclude that there is any difference between the average value between houses that have a fireplace (Fireplace = 1) and houses that don’t have a fireplace (Fireplace = 0)?

  Confidence interval estimate for mean value

Assuming a normal distribution construct a 95% confidence interval estimate for the mean value of all greeting cards in the store's inventory. Suppose there are 2,500 greeting cards in the store's inventory. How are the results in (a) useful in as..

  Level of exposure to a certain pathogen

An individual whose level of exposure to a certain pathogen is x will contract the disease caused by this pathogen with probability P(x). If the exposure level of a randomly chosen member of the population has probability density function f , dete..

  Calculate the percent of budget for each expense category

Use a formula to calculate a total for each month of expenses. Beside the column add another column for calculating the percent of the budget for each expense category.

  Drawing pin points downward

Let Y be the number of times the drawing pin points downward in the latter series of throws. Find the distribution of Y (cf. Problem 3.8.31).

  Complete the run with the times between 50 and 70 minutes

What is the chance that finishers complete the run with the times between 50 and 70 minutes?

  Mean price of textbooks

This is a test regarding two dependent samples. There is sufficient evidence to conclude that the mean price of textbooks is lower at seller A.

  External factors more than internal ones

"The external factors more than internal ones were responsible for the end of Cold War" How far do you agree?

  Direct versus indirect exchange rates

Direct versus Indirect Exchange Rates Assume that during this semester, the euro appreciated against the dollar. Did the direct exchange rate of the euro increase or decrease? Did the indirect exchange rate of the euro increase or decrease?

  Suggest true mean time to complete safety checkup is greater

Is there any evidence to suggest that the true mean time to complete the safety checkup is greater than 30 minutes?

  Determining confidence interval for mean test score

If you did not know anything about standard deviation of population from which sample was taken, find out the 95% confidence interval for mean test score.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd