Dowell-sample-size-calculation

The Sample Size Calculator API is a tool designed to assist researchers, analysts, and data scientists in determining the appropriate sample size for a given population, variance, error tolerance, and confidence interval. This API streamlines the process of calculating sample sizes for various statistical analyses, ensuring that your studies are statistically sound and reliable.

Getting Started

To begin using the Sample Size API, follow these steps:

1. Review the API Documentation: Familiarize yourself with the available endpoints, request parameters, and response formats outlined in this documentation.
2. API Requests: Make API requests using the provided endpoint and necessary input parameters:

• Endpoint:

  http://100102.pythonanywhere.com/sample-size/

• Input Parameters:

  1. Variance: A measure of how much the values in a dataset differ from the mean. It indicates the spread or dispersion of the data points.

  2. Error Tolerance: The maximum allowable difference between the true population parameter and the estimated parameter based on the sample. It reflects the level of precision desired in the study's results.

  3. Population Size: The total number of individuals or elements in the entire population being studied. It is the entire group from which a sample is drawn.

  4. Confidence Interval: A range within which the true population parameter is expected to lie with a certain level of confidence. It is often expressed as a percentage.

3. Response Format: Upon making an API request, you will receive a detailed response containing the following information:

• method_used: The specific statistical method applied for sample size calculation.Methods used are:
  • Slovin's Method- When the variance is not provided.
  • Sample size generation using population size, variance, error and confidence interval (z score).
• sample_size: The recommended sample size for the study.
• computation_time: The time taken for the computation process.

Documentation and Support

For detailed API documentation, including endpoint descriptions, request and response examples, and authentication details, please refer to the API Documentation.

If you encounter any issues, have questions, or need assistance with the Dowell Sample Size API, please contact our support team.