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Unformatted text preview: two-sided conﬁ-dence interval on the mean strength. (5 points) b) Assuming a normally distributed population, construct a 95% two-sided conﬁdence interval on the mean strength knowing that σ = 36. (5 points) c) Explain the diﬀerence in the lengths of the intervals in parts a) and b). (2 bonus points)...
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