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  1. A) Find Tα for a confidence interval (C.I.) of 95%, n = 18.

B) Find Zα for a C.I. of 92%, n = any value2. Determine the sample size necessary to estimate “p”, the population proportion, for the following information. E = 0.02, p = 0.40, and the confidence level is 96%.3.) Determine the sample size necessary to estimate “p”, the population proportion, for the following information: E = 0.05, p = 0.55, and the confidence level is 90%.4. Given “n” = 12, x̅ = 319.7, “s” = 9.104, compute a 99% C.I. for μ.5. Given σ = 36, E = 5, C.I. = 93%, compute the appropriate size necessary to estimate μ.6. Determine the sample size necessary to estimate “p”, the population proportion, for the following info: E= 0.06, a C.I. of 85%, and a p and q which are unknown

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