## Demystifying statistics: Estimating sample size for a survey

Introduction Whether you want to understand people’s preferences for a product, estimate the proportion of people preferring a political party or estimate the prevalence of a disease in a population, you will need to calculate the number of respondents sufficient for your survey objective. How can you calculate this magic number? To obtain a completely accurate answer, you will have to ask each and every individual in your population. A population in statistics… Read More »Demystifying statistics: Estimating sample size for a survey