In a random sample of 12 dental assistants, the mean annual

Last updated: 7/29/2022

In a random sample of 12 dental assistants, the mean annual earnings was $31,721. The population is normally distributed with a standard deviation of $5260. Construct a 95% confidence interval for the population mean annual earnings for dental assistants. Select the correct answer below: With 95% confidence, you can say that the population mean annual earnings is between $29,942 and $32,991. With 95% confidence, you can say that the population mean annual earnings is between $28,745 and $34,697. With 95% confidence, you can say that the population mean annual earnings is between $29,734 and $35,007. With 95% confidence, you can say that the population mean annual earnings is between $28,877 and $34,598.