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A new method for the determination of mercury in oyster tissue is compared with NIST SRM 1566B (Oyster tissue). The NIST standard is said to contain 0.0371 mg/kg mercury in oyster tissue. Five replicates through the new method gave a mercury content of 42 ppb with a standard deviation of 2 ppb.

Perform a t-test at the 95% confidence level to determine if the new method contains bias.

What is the calculated value of t for the new method (to two sig. figs)?

What is the critical value of t (to two sig. figs)?

Does the new method contain bias at the 95% confidence level?

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  • Category:- Chemistry
  • Reference No.:- M91095565

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