Find the appropriate values of n1 and n2 (assume that n1 = n2) needed to estimate (1
Question:
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.
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a For confidence coefficient 95 1 95 05 and 2 05 2 025 From Table IV Appendix A z 025 196 ...View the full answer
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