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A group of students took turns using a laboratory balanceto weigh the water contained in a beaker. The results theyreported were 111.42 g, 111.67 g, 111.21 g, 135.64 g,111.02 g, 111.29 g, and 111.42 g.(a) Should any of the data be excluded before the average     is calculated?(b) From the remaining measurements, calculate the average value of the         mass of the water in the beaker.(c) Calculate the standard deviation s and, from it, the     95% confidence limit.

A group of students took turns using a laboratory balanceto weigh the water contained in a beaker. The results theyreported were 111.42 g, 111.67 g, 111.21 g, 135.64 g,111.02 g, 111.29 g, and 111.42 g.(a) Should any of the data be excluded before the average     is calculated?(b) From the remaining measurements, calculate the average value of the         mass of the water in the beaker.(c) Calculate the standard deviation s and, from it, the     95% confidence limit.

Chemistry
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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A group of students took turns using a laboratory balance
to weigh the water contained in a beaker. The results they
reported were 111.42 g, 111.67 g, 111.21 g, 135.64 g,
111.02 g, 111.29 g, and 111.42 g.
(a) Should any of the data be excluded before the average
     is calculated?
(b) From the remaining measurements, calculate the average value of the         mass of the water in the beaker.
(c) Calculate the standard deviation s and, from it, the
     95% confidence limit.

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