Mathematics

Xiomara Keith

10 December, 13:19

The shipping times for warehouses in an industry are normally distributed with an unknown population mean and standard deviation. A random sample of 37 warehouses is taken and results in a sample mean of 42 minutes and sample standard deviation of 5 minutes. df ... 3536373839t0.10 ...1.3061.3061.3051.3041.304t0.05 ...1.6901.6881.6871.6861.685t0.025 ...2.0302.0282.0262.0242.023t0.01 ...2.4382.4342.4312.4292.426t0.005 ...2.7242.7192.7152.7122.708 Find a 95% confidence interval estimate for the population mean using the Student's t-distribution. Round the final answers to two decimal places.