Find the appropriate values of n₁ and n₂ (assume n₁ = n₂) needed to estimate (µ₁ −µ₂) with each of the following. a. A sampling error equal to 2.2 with 95% confidence. From prior experience it is known that ₁14 and 02≈ 16. b.A sampling error equal to 4 with 99% confidence. The range of each population is 56. CA 90% confidence interval of width 1.7. Assume that o?~5.2 and 27.9.

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