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
icon
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
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
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
Expert Solution
steps

Step by step

Solved in 5 steps with 23 images

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt