Preliminary SAT (PSAT) Practice Test

The accuracy of a survey is significantly influenced by the size of the sample used. A larger sample size typically provides a more reliable representation of the population being studied. This is because a larger group reduces the impact of outliers or anomalies that may skew results, leading to more stable estimates of population parameters. Additionally, a sufficient sample size ensures that the results are less affected by random variations, increasing the confidence in the conclusions drawn from the survey data.

While other factors, such as the background of the survey conductor, the length of the survey, and the time of day the survey is conducted, can have some influence on the quality and reliability of data collected, the fundamental principle of statistical accuracy hinges on having a sufficiently representative and adequately sized sample. Thus, focusing on sample size stands as a crucial factor in achieving accuracy in survey results.

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