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 oner (11 33 - 11.84 ) b. (1156-12.13) O c. (12 - 13) (12.223 12.477)

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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.
(11.33 - 11.84 )
Ob. (11 56-12.13)
c. (12 - 13 )
Pd. (12 223 -12 477 )
Transcribed Image Text: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. (11.33 - 11.84 ) Ob. (11 56-12.13) c. (12 - 13 ) Pd. (12 223 -12 477 )
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