B. Four analysts carry out replicate sets of determinations of mercury (Hg) on the same analytical sample. The results in ppb Hg are shown below Determination Analyst 1 Analyst 2 Analyst 3 Analyst 4 1 10.24 10.14 10.19 10.19 2 10.26 10.12 10.11 10.15 3 10.29 10.04 10.15 10.16 4 10.23 10.07 10.12 10.10 (a) State the appropriate hypothesis (b) Do the the analysts differ at the 95% confidence interval? At the 99% confidence level (Fcrit = 5.95)? At the 99.9% confidence interval (Fcrit = 10.80)? (c) Which analysts, differ from each other at the 95% confidence level?
B. Four analysts carry out replicate sets of determinations of mercury (Hg) on the same analytical sample. The results in ppb Hg are shown below Determination Analyst 1 Analyst 2 Analyst 3 Analyst 4 1 10.24 10.14 10.19 10.19 2 10.26 10.12 10.11 10.15 3 10.29 10.04 10.15 10.16 4 10.23 10.07 10.12 10.10 (a) State the appropriate hypothesis (b) Do the the analysts differ at the 95% confidence interval? At the 99% confidence level (Fcrit = 5.95)? At the 99.9% confidence interval (Fcrit = 10.80)? (c) Which analysts, differ from each other at the 95% confidence level?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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B. Four analysts carry out replicate sets of determinations of mercury (Hg) on the same analytical sample. The results in ppb Hg are shown below
| Determination | Analyst 1 | Analyst 2 | Analyst 3 | Analyst 4 |
| 1 | 10.24 | 10.14 | 10.19 | 10.19 |
| 2 | 10.26 | 10.12 | 10.11 | 10.15 |
| 3 | 10.29 | 10.04 | 10.15 | 10.16 |
| 4 | 10.23 | 10.07 | 10.12 | 10.10 |
(a) State the appropriate hypothesis
(b) Do the the analysts differ at the 95% confidence interval? At the 99% confidence level (Fcrit = 5.95)? At the 99.9% confidence interval (Fcrit = 10.80)?
(c) Which analysts, differ from each other at the 95% confidence level?
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