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4. You have run a series of titrations to determine the unknown concentration of KHP in a solid sample. The results of six titrations indicate KHP concentrations of 46.14%, 45.69%, 40.15%, 45.55%, 46.07%, 45.98%. If the "true" value for KHP in this sample is 46.29%, do your results differ at the 95% confidence level?

4. You have run a series of titrations to determine the unknown concentration of KHP in a solid sample. The results of six titrations indicate KHP concentrations of 46.14%, 45.69%, 40.15%, 45.55%, 46.07%, 45.98%. If the "true" value for KHP in this sample is 46.29%, do your results differ at the 95% confidence level?

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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4. You have run a series of titrations to determine the unknown concentration of KHP in a solid sample. The results of six titrations indicate KHP concentrations of 46.14%, 45.69%, 40.15%, 45.55%, 46.07%, 45.98%. If the "true" value for KHP in this sample is 46.29%, do your results differ at the 95% confidence level? 5. Union College was conducting a phonaton to raise money to increase students' scholarships. The president hoped to obtain half a million dollars for the purpose. The following data represents the amounts pledged (in thousands of dollars) by all alumni who were called during the first nine nights of the campaign. 16, 18, 11, 17, 13, 10, 22, 15, 16 Compute the mean, median, and standard deviation Describe the shape of the data set Estimate the total amount that will be pledged (in thousands of dollars) by all alumni if the campaign is to last 30 nights (total = 30* mean) Do you think the phonaton will raise the amount the President hoped to obtain? Explain.
Transcribed Image Text:4. You have run a series of titrations to determine the unknown concentration of KHP in a solid sample. The results of six titrations indicate KHP concentrations of 46.14%, 45.69%, 40.15%, 45.55%, 46.07%, 45.98%. If the "true" value for KHP in this sample is 46.29%, do your results differ at the 95% confidence level? 5. Union College was conducting a phonaton to raise money to increase students' scholarships. The president hoped to obtain half a million dollars for the purpose. The following data represents the amounts pledged (in thousands of dollars) by all alumni who were called during the first nine nights of the campaign. 16, 18, 11, 17, 13, 10, 22, 15, 16 Compute the mean, median, and standard deviation Describe the shape of the data set Estimate the total amount that will be pledged (in thousands of dollars) by all alumni if the campaign is to last 30 nights (total = 30* mean) Do you think the phonaton will raise the amount the President hoped to obtain? Explain.
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