# Sample Size 500/ Margin Of Error

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The % should be **more or less the same for** both groups to have a representative sample. How to determine population and survey sample size? To be representative, you will need to have respondents from all 4 universities. Five percent (5%) is a common margin of error. have a peek here

Give us a call! The sample size for my unknown population was 348 patients Gert Van Dessel - January, 2016 reply Mohamed,What do you mean by ‘unknown population'? For error margin 5% this would be 383. we cannot take 0.66 of a subject - we need to round up to guarantee a large enough sample. 2.

## What Is A Good Sample Size For Quantitative Research

You have seen 1,000 patients over the last six months. Search Course Materials Faculty login (PSU Access Account) I. or when populations are small as well (e.g., people with a disability)? This is because I was expected to collect minimum of 240 in order to conclude the research.

Remember that your population consist of approximately 400 million adults in the EU. But that doesn't seem to be the case and I can't get my head around why that is so. This means if let's say 60% of your sample select a certain answer option, in reality for your total population this will be between 54% (60%-16%) and 76% (60% + 16%). Representative Sample Size Calculator Margin of Error: A percentage **that describes how** closely the answers your sample gave is to the “true value” in your population.

adugnaw - September, 2015 reply Dear Didier,1)My target population= 634 sample size 240 (based on sample size calculation) Is this 240 the minimum required respondents? You can use it to determine how many people you need to interview in order to get results that reflect the target population as precisely as needed. If you want to reduce your error margin to 5%, you need to double your total sample from 66 to 132. http://research-advisors.com/tools/SampleSize.htm Reply dataquestionner Hi!

How well the sample represents the population is gauged by two important statistics – the survey's margin of error and confidence level. How Many Responses Do I Need For A Survey To Be Valid Thank you. When you want to do face-2-face interviews in the bank offices, you will need a lot of interviewers to get to 100,000 within 2 months. a.

## What Is A Good Sample Size For Research

If you are not familiar with these terms, click here. Non-random samples usually result from some flaw in the sampling procedure. What Is A Good Sample Size For Quantitative Research Maarten Marijnissen - September, 2016 reply Hi,This sample gives you a margin of error of 9,48% for 95% confidence level, which is quite high.This number is the plus-or-minus figure usually reported Minimum Sample Size For Quantitative Research Assuming that you are launching the new line on the European market, that minors do not buy furniture and that your furniture is reasonably priced, your population consists of all adults

so, how I can choose between hospitals? navigate here But one thing still confuse me when i want to calculate the size of the sample, and my problem to me is what criterion am i using to choose (2% as sunday - September, 2016 reply dear sir, I am doing research using qualitative methodology with a case study design .but I encounter a problem on stating sample size because there is Home Store Project Ideas Project Guide Ask An Expert Blog Careers Teachers Parents Students Create Assignment Sample Size: How Many Survey Participants Do I Need? What Is A Good Sample Size For Qualitative Research

Reply Debasis Thanks. Register iSixSigmawww.iSixSigma.comiSixSigmaJobShopiSixSigmaMarketplace Create an iSixSigma Account **Login LanguagesEnglishfrançaisNederlandsLogin FeaturesServices Project preparationData collectionAnalysis** & reporting servicesRespondent panelsPaper surveysServices pricingPricingResources ExamplesBlogHelp CenterSample size calculatorSurvey APIAbout us About usWhy CheckMarket?Our ClientsCasesTestimonialsJobsPartner ProgramOur infrastructureOur logoContact if the sample size he obtains is 250, what is the population? http://onlivetalk.com/sample-size/sample-size-for-10-margin-of-error.php In other words, the actual proportion could be as low as 28% (60 - 32) and as high as 92% (60 + 32).

If you're running a survey for the first time, and since most surveys have more than one question (and therefore more than one percentage value to evaluate), we recommend using p Determining Sample Size For Research Activities Gert Van Dessel - July, 2016 reply Seth,Once your population is large enough, your required sample size does not change very much anymore. You can use our sample size calculator to check for other options">sample size calculator to check.

## Maarten Marijnissen - October, 2016 Hi Fiona,Below you find the formula for calculating your sample size for an unknown population:First you calculate the sample size (SS).

Nang Aye Aye Mon - September, 2016 reply Hello sayar,I have collected a sample of 100 out of total population of 1533.Is it a representative? tanveer kaur - September, 2016 reply Hello Sir,Iam doing a qualitative research, having a total population of 3078 with 655 households. Gert Van Dessel - August, 2016 reply Ravi,First of all you have to make an estimation of your entire population (e.g. Sample Size Table i would conduct my study at shopping malls, which is unknown population.

or would you Gert Van Dessel - June, 2016 reply Hi,Thanks for your question. To calculate the number of respondents you need (known as your sample size), use our sample size calculator or refer to our suggested sample sizes. Finally, when n = 2,000, the margin of error is or 2.19%. http://onlivetalk.com/sample-size/sample-size-margin-error.php The bottom line is, you need to survey a lot of people before you can start having any confidence in your results.

If you take a confidence level of 95%, your error margin will be exactly 5% with 350 respondents for a population of 3901. E.g. Applied Statistical Decision Making Lesson 6 - Confidence Intervals6.1 - Inference for the Binomial Parameter: Population Proportion 6.2 - Sample Size Computation for Population Proportion Confidence Interval 6.3 - Inference for