Answer the following problems. 1. Independent random samples were selected from two populations. The sample means, known population variance and sample sizes are given in the following table:...

Extracted text: Answer the following problems. 1. Independent random samples were selected from two populations. The sample means, known population variance and sample sizes are given in the following table: Populatinn Population 2 Sample mean 38 Population variance Sample size 40 46 Find the 90% confidence interval for estimating the difference in the population (- H2)