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solve in 15 min sir Q.2 (8) A confidence interval is constructed from a sample of size 13, for the mean of a normal population

solve in 15 min sir

Q.2 (8) A confidence interval is constructed from a sample of size 13, for the mean of a normal population which has sample standard deviation 1.77. The limits for the interval are 23.14 and 25.28. What confidence coefficient was used

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