Question: a chemist analysis an iron ore for FeO.and obtained value of 12.35% with a standard deviation of 0.08 calculate the 95% confidence interval of

a chemist analysis an iron ore for FeO.and obtained value of 12.35%

a chemist analysis an iron ore for FeO.and obtained value of 12.35% with a standard deviation of 0.08 calculate the 95% confidence interval of the mean based on 4 determination? Select one: Pa. (11.33- 11.84) b. (11.56- 1213). Oc (12 - 13) ed (12223 - 12.477)

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