Use the provided 95% confidence level and sample data to determine a confidence interval for the population variance. Assume that a simple random sample has been selected from a population with a normal distribution. The sample consists of starting salaries of 28 college graduates who have taken biology courses. The sample mean salary is $49,088.30 with a standard deviation of $113.20 and a sample variance of 12,814.00. How many decimal places should your statistics be rounded to?

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23-07-2024
Mathematics

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Use the provided 95% confidence level and sample data to determine a confidence interval for the population variance. Assume that a simple random sample has been selected from a population with a normal distribution. The sample consists of starting salaries of 28 college graduates who have taken biology courses. The sample mean salary is $49,088.30 with a standard deviation of $113.20 and a sample variance of 12,814.00. How many decimal places should your statistics be rounded to?

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