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Find the sample standard deviation

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It can be assumed that the blood glucose level at birth for babies born to mothers who had gestational diabetes follows a normal distribution with mean μ and standard deviation σ, both of which are unknown. A 95% confidence interval for μ based on a sample of n  = 11 such babies was given as (4.8, 5.6).

(a) Find the sample mean.

(b) Find the sample standard deviation.

(c) Find a 95% upper confidence bound for σ.

Reference no: EM132857384

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