What are two methods of estimating standard deviation

Assignment Help Basic Statistics
Reference no: EM132422152

Problem: When determining the sample size needed to achieve a particular error estimate you need to know standard deviation. What are two methods of estimating standard deviation if the standard deviation is unknown? Please describe your solutions.

Reference no: EM132422152

Questions Cloud

What are the state and federal objectives of punishment : What are the state and federal objectives of punishment? How does sentencing affect the state and federal corrections systems overall? Support your answer.
Provide sufficient evidence that the mean ph level : Does this sample provide sufficient evidence that the mean pH level in the water differs from 8.5?
Describe the social media use policy : The developments in technology are invaluable resources that help law enforcement officer in performance of their duties, nonetheless.
What is the probability that the person will make : If a randomly selected individual takes the test, what is the probability that the person will make more than 15 points?
What are two methods of estimating standard deviation : What are two methods of estimating standard deviation if the standard deviation is unknown? Please describe your solutions.
BUS 301A - Business Finance Assignment Problem : BUS 301A - Business Finance Assignment Help and Solution, Colorado Christian University, USA. What have you learned in this course that was new to you
Identify the important facts in the case study : Identify the important facts in the case study. Discuss any alternative solutions to the problem and support those solutions with additional research.
Would a shift in the units of measurement from ounces : Would a shift in the units of measurement from ounces to grams and from pounds to kilograms change the value of r? Justify your answer.
Draw the conclusion in hypotheses testing : When using SPSS for hypotheses testing, it can be determined that whether there is a significant evidence for an alternative hypothesis using p-value

Reviews

Write a Review

Basic Statistics Questions & Answers

  Information on a random sample

A researcher has compiled a file of information on a random sample of 317 families that have chronic, long-term patterns of child abuse.

  Since the p value is greater or less than the level of

suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less

  Randomly drawn from the urn in succession

An urn contains 8 black and 9 green balls. Five balls are randomly drawn from the urn in succession, with replacement.That is, after each draw, the selected ball is returned to the urn. What is the probability that all 5 balls drawn from the ur..

  State the definition of better

If you have a choice between two estimates, the sample mean from a sample of size 5 and a sample mean from a sample of size 10.

  What is the regression line

What is the regression line? Give an example of simple correlation between two variables.

  What percent of the time was the forecast correct

On what percent of days did it actually rain?- On what percent of days was rain predicted?- What percent of the time was the forecast correct?

  Predict the outcome of a presidential election

The names of 200 patrons of a casino are drawn from a list of visitors for the past month, and a questionnaire is administered to them.

  What is the random variable for the given survey

If the Prudential Insurance Company surveys its customers to determine the number of children under age 22 living in each household.

  Strength of a relationship between two variables

Correlation is used to determine the strength of a relationship between two variables. What kind of variables? Quantitative ones. The result of a correlation will be a number ranging between -1 and 1.

  Appropriate bps formatted descriptive statistics

Comprise appropriate (BPS formatted) descriptive statistics table inferential statistics table.

  Explosions particularly difficult for forensic scientists

Explain three factors that make investigating arson and explosions particularly difficult for forensic scientists.

  Recognize the statistical formulas

Be sure to specifically identify the statistical formulas and what additional data you would need to determine your estimate(s).

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