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(a) Suppose, two CIs for estimating a population mean are defined mathematically as, x It(1-a/,) and x + z(1-a/,), respectively, under the usual notations. Mention

(a) Suppose, two CIs for estimating a population mean are defined mathematically as, x It(1-a/,) and x + z(1-a/,), respectively, under the usual notations. Mention the suitability of the two intervals by stating the underlying conditions

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