The percentage of Texans not covered by health care insurance in 2015 was 17%. The Texas Health and Human Services Commission (HHSC) has been charged with conducting a sample survey to obtain more current information. What sample size would you recommend if the HHSC’s goal is to estimate the current proportion of Texans without health care insurance with a margin of error of .03? Use a 95% confidence level. Repeat part (a) using a 99% confidence level.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.