tudents measured the concentration of HCl in a solution by titrating with different indicators to find the end point. F Indicator A. Bromothymol blue B. Methyl red Mean HCl concentration (M) (± standard deviation) calc = 0.09565 +0.00225 0.08686 ± 0.00098 Number of measurements 0.08641±0.00113 28 C. Bromocresol green SOURCE: Data from D. T. Harvey, "Statistical Evaluation of Acid-Base Indicators," J. Chem. Ed. 1991, 68, 329. 18 s the difference between indicators A and B significant at the 95% confidence level? Jse the F-test to determine whether the standard deviations of the HCl concentrations determined using indicators A and B ignificantly different at the 95% confidence level. Report the calculated F value and estimate the F value from the table. 29
tudents measured the concentration of HCl in a solution by titrating with different indicators to find the end point. F Indicator A. Bromothymol blue B. Methyl red Mean HCl concentration (M) (± standard deviation) calc = 0.09565 +0.00225 0.08686 ± 0.00098 Number of measurements 0.08641±0.00113 28 C. Bromocresol green SOURCE: Data from D. T. Harvey, "Statistical Evaluation of Acid-Base Indicators," J. Chem. Ed. 1991, 68, 329. 18 s the difference between indicators A and B significant at the 95% confidence level? Jse the F-test to determine whether the standard deviations of the HCl concentrations determined using indicators A and B ignificantly different at the 95% confidence level. Report the calculated F value and estimate the F value from the table. 29
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
Related questions
Question
![Ftable =
Use an appropriate t-test to determine whether the mean HCl concentrations determined using indicators A and B are
significantly different at the 95% confidence level. Report the calculated t value and the t value from the table.
tcalc =
ttable
=
Is the difference between indicators A and B significant at the 95% confidence level?
no
yes](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7fd574dc-13b6-465a-8f4d-a9d3367cc949%2F132933a8-0178-41d2-b379-b227ba538458%2Fbi1ry1_processed.png&w=3840&q=75)
Transcribed Image Text:Ftable =
Use an appropriate t-test to determine whether the mean HCl concentrations determined using indicators A and B are
significantly different at the 95% confidence level. Report the calculated t value and the t value from the table.
tcalc =
ttable
=
Is the difference between indicators A and B significant at the 95% confidence level?
no
yes
![Students measured the concentration of HCl in a solution by titrating with different indicators to find the end point.
Fcalc
Indicator
A. Bromothymol blue
B. Methyl red
=
Mean HCl concentration (M) (± standard deviation)
0.09565 +0.00225
0.08686 ± 0.00098
Number of measurements
C. Bromocresol green
SOURCE: Data from D. T. Harvey, "Statistical Evaluation of Acid-Base Indicators," J. Chem. Ed. 1991, 68, 329.
Is the difference between indicators A and B significant at the 95% confidence level?
Use the F-test to determine whether the standard deviations of the HCl concentrations determined using indicators A and B are
significantly different at the 95% confidence level. Report the calculated F value and estimate the F value from the table.
0.08641±0.00113
28
18
29](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7fd574dc-13b6-465a-8f4d-a9d3367cc949%2F132933a8-0178-41d2-b379-b227ba538458%2Fcg1zpea_processed.png&w=3840&q=75)
Transcribed Image Text:Students measured the concentration of HCl in a solution by titrating with different indicators to find the end point.
Fcalc
Indicator
A. Bromothymol blue
B. Methyl red
=
Mean HCl concentration (M) (± standard deviation)
0.09565 +0.00225
0.08686 ± 0.00098
Number of measurements
C. Bromocresol green
SOURCE: Data from D. T. Harvey, "Statistical Evaluation of Acid-Base Indicators," J. Chem. Ed. 1991, 68, 329.
Is the difference between indicators A and B significant at the 95% confidence level?
Use the F-test to determine whether the standard deviations of the HCl concentrations determined using indicators A and B are
significantly different at the 95% confidence level. Report the calculated F value and estimate the F value from the table.
0.08641±0.00113
28
18
29
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