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of = 0. 1 df= n-1 = 24 S = 4.3 Xo.95 = 13.848 52 = 18.49 ( 1 - 1 ) 5 2 (

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of = 0. 1 df= n-1 = 24 S = 4.3 Xo.95 = 13.848 52 = 18.49 ( 1 - 1 ) 5 2 ( 1 -1 )52 X Right Lo - 1x2ett 24 ( 18.49 ) 20 LN 24 ( 18.49 36.415 13.848 3. 49 LO L 5. 66 A 90% confidence interval for the Standard deviation of vitamin C content is ( 3.49 , 5-66 )

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