Show transcribed image text To construct a confidence iterval or the difference between two population means Î¼1-Î¼2-use the formula shown below when both opulation standard deviations are known, and either both populations are normally distributed oboh n 230 and n2 230. Also, the samples must be randomly selected and independent. n1 2 n1 n2 The descriptive statistics for the annual salaries from a random sample of microbiologists from two regions are shown below. Construct a 95% confidence interval for the difference between the mean annual salaries. x1 = $108,340, n1 = 43, and Ïƒ1-S8650; x2-$85,820, nz" 38, and Ïƒ2 = $8645 Complete the 95% confidence interval for Î¼ 1-u2 below. (Round to the nearest dollar as needed.)

To construct a confidence iterval or the difference between two population means Î¼1-Î¼2-use the formula shown below when both opulation standard deviations are known, and either both populations are normally distributed oboh n 230 and n2 230. Also, the samples must be randomly selected and independent. n1 2 n1 n2 The descriptive statistics for the annual salaries from a random sample of microbiologists from two regions are shown below. Construct a 95% confidence interval for the difference between the mean annual salaries. x1 = $108,340, n1 = 43, and Ïƒ1-S8650; x2-$85,820, nz" 38, and Ïƒ2 = $8645 Complete the 95% confidence interval for Î¼ 1-u2 below. (Round to the nearest dollar as needed.)