(1) When performing chemical measurements, replicate experiments are often needed. This is to (Systematic or Random) error. mitigate (2) A CHEM 215 student performed 5 measurements of the wt% of SO42- of a solid power sample. The results are 8.75%, 8.85%, 8.89%, 8.71%, 8.64%. The standard deviation is 0.10%. What is the confidence interval for this student's experiment at 95% confidence level. The t values for 95% confidence for degree of freedom from 1 to 5 are 12.71, 4.303, 3.182, 2.776, 2.571, respectively. Show your work!
(1) When performing chemical measurements, replicate experiments are often needed. This is to (Systematic or Random) error. mitigate (2) A CHEM 215 student performed 5 measurements of the wt% of SO42- of a solid power sample. The results are 8.75%, 8.85%, 8.89%, 8.71%, 8.64%. The standard deviation is 0.10%. What is the confidence interval for this student's experiment at 95% confidence level. The t values for 95% confidence for degree of freedom from 1 to 5 are 12.71, 4.303, 3.182, 2.776, 2.571, respectively. Show your work!
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:2
(1) When performing chemical measurements, replicate experiments are often needed. This is to
mitigate
(Systematic or Random) error.
(2) A CHEM 215 student performed 5 measurements of the wt% of SO4²- of a solid power sample. The
results are 8.75%, 8.85%, 8.89%, 8.71%, 8.64%. The standard deviation is 0.10%. What is the confidence
interval for this student's experiment at 95% confidence level. The t values for 95% confidence for
degree of freedom from 1 to 5 are 12.71, 4.303, 3.182, 2.776, 2.571, respectively. Show your work!
Expert Solution
Step 1: Interpretation of problem statement
Ques 2(1) -Determine type of error mitigated when replicate experiments are often needed.
Ques 2(2):
Given Data:
The result of an experiment performed by a student :
5 measurements of the wt% of SO42- are8.75%, 8.85%, 8.89%, 8.71%, 8.64%
Standard deviation = 0.10 %
To determine:
Confidence interval for student's experiment at 95% Confidence interval
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