Statistics

A research worker wishes to estimate the mean of a population by using sufficiently large sample. At the confidence level of 99%,the sample mean will be within 35% of the standard deviation. How large a sample should be taken?

  1. 👍 0
  2. 👎 0
  3. 👁 223

Respond to this Question

First Name

Your Response

Similar Questions

  1. stat

    Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. A researcher wishes to estimate the mean amount of money spent per month on food by households in a certain

    asked by jim on April 26, 2015
  2. statistics

    A researcher at a major hospital wishes to estimate the proportion of the adult population of the U.S. that has high blood pressure. How large a sample is needed in order to be 99% confident that the sample proportion will not

    asked by chalulu on March 13, 2011
  3. stat

    A researcher at a major clinic wishes to estimate the proportion of the adult population of the US that has sleep deprivation. How large a sample is needed in order to be a 95% confident that the sample proportion will not differ

    asked by SD on December 5, 2015
  4. mpc

    A reasearcher wishes to be 95% confident that her estimate of the proportion of two individuals who travel over sea is within 4% of the true proportion. Find the sample necessary if in a prior study a sample of 200 people showed

    asked by anonymous on November 8, 2015
  5. Math ---HELP!!!!!

    A researcher wishes to estimate the mean amount of money spent per month on food by households in a certain neighborhood. She desires a margin of error of $30. Past studies suggest that a population standard deviation of $248 is

    asked by angela on May 30, 2016
  1. statistics

    A researcher wishes to estimate the mean height of women aged between 60 and 65 in the US. She desires a margin of error of 0.2 inches. Past studies suggest that a population standard deviation deviation of 3.2 inches is

    asked by dan on January 23, 2012
  2. statistics

    A researcher wishes to estimate the mean amount of money spent per month on food by households in a certain neighborhood. She desires a margin of error of $30. Past studies suggest that a population standard deviation of $248 is

    asked by MARY on April 18, 2015
  3. Elementary Statistics

    1) Construct a confidence interval of the population proportion at the given level of confidence. x=60,n=300, 99% confidence. The 99% confidence interval is (_,_) 2) A researcher wishes to estimate the proportion of adults who

    asked by Erin on June 6, 2012
  4. Statistics

    A researcher wishes to estimate the proportion of adults who have high-spped internet access. What size sample should be obtained if she wishes the estimate to be within .02 with 90% if A) She uses a previous estimate of 0.48? B)

    asked by Megan on May 5, 2013
  5. statistics (please help)

    Choose the correct response. Why is sampling without replacement acceptable with a large population? a. When a small sample is taken from a large population, the samples maintain their independence. b. When a large sample is taken

    asked by maczindahouse on February 28, 2019

More Similar Questions