aturday by 11:59pm Points 160 Submitting an external tool 44/50 Content attribution QUESTION 47 - 1 POINT Suppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 5 days and an unknown population mean. A random sample of 19 types of grass seed is taken and gives a sample mean of 36 days. Find the confidence interval for the population mean with a 99% confidence level. Zo.10 20 05 20 025 20.01 Z0.005 1.282 1.645 1.960 2.326 2.576 You may use a calculator or the common z values above. . Round the final answer to two decimal places. Next Previous 67 F Mostly cloudy ~ 0 C O