Question

Find the appropriate values of n1 and n2 (assume that n1 = n2) needed to estimate (µ1 - µ2) with
a. A sampling error equal to 3.2 with 95% confidence. From prior experience, it is known that σ1 ≈ 15 and σ2 ≈ 17.
b. A sampling error equal to 8 with 99% confidence. The range of each population is 60.
c. A 90% confidence interval of width 1.0. Assume that σ12 = 5.8 and σ22 = 7.5.


$1.99
Sales0
Views32
Comments0
  • CreatedMay 20, 2015
  • Files Included
Post your question
5000