Find the appropriate values of n1 and n2 (assume that LO5 n1 = n2) needed to estimate
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Find the appropriate values of n1 and n2 (assume that LO5 n1 = n2) needed to estimate 1m1 - m22 with
a. A sampling error equal to 3.2 with 95% confidence.
From prior experience, it is known that s1 ≈ 15 and s2 ≈ 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 s1 2 ≈ 5.8 and s2 2 ≈ 7.5.
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