Determination of boron in water samples (g/mL) usingtwo different instrumental methods givesthe following results:

Spectrophotometryn = 10x= 28.01s= 0.30

Fluorimetricmethodn = 12x= 26.25s= 0.23

Answer the following questions to conclude if the two instrumental methodsgive thesame result or not. Assume that the standard deviations of the two methods arenotsignificantly different.

(a)What is your calculateds_pooled(report4decimalplaces, No subscript)?

(b)What is yourcalculatedtvalue?(1decimalplaces, No subscript)?

(c)What is thet tablevalue?(use the table in your textbook) (3decimalplaces, No subscript)?

(d)Is the necessarystatistical Hypothesisacceptedorrejected? (typeAcceptedorRejected)

(e)Domethods A and B give thesameordifferentresultsat the95%confidence level?(typeSameorDifferent)