Explain the calculated value of t for the new method

Assignment Help Chemistry

Reference no: EM13558454

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?

Reference no: EM13558454

Questions Cloud

Find the resulting surface charge density : Space vehicles traveling through Earth's radiation beltscan intercept a significant number of electrons. Find the resulting surface charge density

Compute the amount of iron present in used jet engine oil : An atomic absorption method for the determination of the amount of iron present in used jet engine oil was found, from pooling 30triplicate analyses, to have a standard deviation s=2.4 µgFe/mL. Calculate the 80% and 95% confidence limits for the r..

An asteroid is discovered heading straight toward earth : An asteroid is discovered heading straight toward Earth at 14 km/s.An international team manages to attach a giant rocket engine tothe asteroid. The rocket fires for 10 min, after which the asteroidis moving at 28 degrees to its original path at a sp..

Find radius of curvature of assembly at 100 degrees celsius : A temperature controller, designed to work in a steam environment, involves a bimetaillic strip constructed of brass and steel,connected at their ends by rivets. Each of the metals is 2.0mm thick.

Explain the calculated value of t for the new method : 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

Improve your decision-making in a group setting : Question:Bazerman and Moore suggest that we should understand the biases of others. Discuss this concept in terms of why it is important for us to understand other peoples' biases. In your discussion, focus on how you might be able to improve y..

How far from the persons feet is the center of mass : A bed rests on two scales which are 2.0 meters apart. A person lies down on the bed with their feet over one scale which reads 320. N while the other scale reads 380. N. How far from the persons feet is the center of mass?

Explain the clandestine synthesis of methamphetamine : Lithium is sometimes used in the clandestine synthesis of methamphetamine, and is often found as an impurity in final product. The amount of lithium impurities in two different methamphetamine seizures were thought to be the same

What is the acceleration of a rising hot-air balloon : What is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is 1.39? Neglect the mass of the balloon fabric and the basket.

User Account

All Pages