use the one mean t interval procedure to find a
confidence level for the mean of the population. x bar=
50, n=16, s=5 and the confidence level is 99%
x̅ = 50, s = 5, n = 16
99% Confidence interval :
At α = 0.01 and df = n-1 = 15, two tailed critical value, t-crit = T.INV.2T(0.01, 15) = 2.947
Lower Bound = x̅ - t-crit*s/√n = 50 - 2.947 * 5/√16 = 46.3166
Upper Bound = x̅ + t-crit*s/√n = 50 + 2.947 * 5/√16 = 53.6834
46.3166 < µ < 53.6834
use the one mean t interval procedure to find a confidence level for the mean of...
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