Mathematics, 23.07.2019 00:10 isabellacampos4586

Astatistics student would like to estimate the average age of students at her college. she would like to be 99% confident that her estimate includes the actual college population mean. she did a smaller preliminary survey and found that a reasonable estimate of the population standard deviation was 2 1/2 years. how many people must she survey if she wants to be within 1/2 year of the true population mean?

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Astatistics student would like to estimate the average age of students at her college. she would lik...