solve the question provided in the image. A student wanted to determine the percentage of sulfate inseven different unknown solid samples; he used two different methods,namely the gravimetric method, and the titration with 0.05 M bariumchloride employing an adsorption indicator to reveal the end point of thetitration. He obtained the following results as shown in the table below:Q07.Sample #%Sulfate%Sulfate(Gravimetric Method)(Titration with adsorptionindictor Method)63.5367.2975.2153.9850.6970.0564.0068.1575.982.455.0151.5371.5258.166.5632Question: Use the student t-test to check if the two methods vielded results that aresignificantly different from each other at 95% confidence level (HA) or if thedifference can be explained by the random error (Ho).7.

Given: Concentration of barium chloride=0.05 M

A student wanted to determine the percentage of sulfate in Q07. seven different unknown solid samples; he used two different methods, namely the gravimetric method, and the titration with 0.05 M barium chloride employing an adsorption indicator to reveal the end point of the titration. He obtained the following results as shown in the table below: %Sulfate (Gravimetric Method) Sample # %Sulfate (Titration with adsorption indictor Method) 63.53 64.00 2. 67.29 75.21 53.98 50.69 70.05 68.15 3 75.98 4 55.01 51.53 71.52 58.16 56.32 Question: Use the student t-test to check if the two methods vielded results that are significantly different from each other at 95%% confidence level (HA) or if the difference can be explained by the random error (Ho).

A student wanted to determine the percentage of sulfate in Q07. seven different unknown solid samples; he used two different methods, namely the gravimetric method, and the titration with 0.05 M barium chloride employing an adsorption indicator to reveal the end point of the titration. He obtained the following results as shown in the table below: %Sulfate (Gravimetric Method) Sample # %Sulfate (Titration with adsorption indictor Method) 63.53 64.00 2. 67.29 75.21 53.98 50.69 70.05 68.15 3 75.98 4 55.01 51.53 71.52 58.16 56.32 Question: Use the student t-test to check if the two methods vielded results that are significantly different from each other at 95%% confidence level (HA) or if the difference can be explained by the random error (Ho).

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.13QAP

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