Random collections of nine different solutions of a calcium compound were given to two laboratories, A and B. Each laboratory measured the calcium content (in mmol per liter) and reported the results. The data are paired by calcium compound. Compound 1 2 3 4 5 6 7 8 9 Lab A (x) 15.36 12.83 8.81 11.30 13.59 9.66 10.72 14.05 11.54 Lab B (y) 15.17 12.72 8.69 11.45 13.63 9.63 10.75 14.23 11.55 (a) Rank-order the data using 1 for the lowest calcium reading. Make a table of ranks to be used in a Spearman rank correlation test. (b) Compute the sample test statistic. (Round your answer to three decimal places.)
Random collections of nine different solutions of a calcium compound were given to two laboratories, A and B. Each laboratory measured the calcium content (in mmol per liter) and reported the results. The data are paired by calcium compound. Compound 1 2 3 4 5 6 7 8 9 Lab A (x) 15.36 12.83 8.81 11.30 13.59 9.66 10.72 14.05 11.54 Lab B (y) 15.17 12.72 8.69 11.45 13.63 9.63 10.75 14.23 11.55 (a) Rank-order the data using 1 for the lowest calcium reading. Make a table of ranks to be used in a Spearman rank correlation test. (b) Compute the sample test statistic. (Round your answer to three decimal places.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Random collections of nine different solutions of a calcium compound were given to two laboratories, A and B. Each laboratory measured the calcium content (in mmol per liter) and reported the results. The data are paired by calcium compound.
| Compound | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Lab A (x) | 15.36 | 12.83 | 8.81 | 11.30 | 13.59 | 9.66 | 10.72 | 14.05 | 11.54 |
| Lab B (y) | 15.17 | 12.72 | 8.69 | 11.45 | 13.63 | 9.63 | 10.75 | 14.23 | 11.55 |
(a) Rank-order the data using 1 for the lowest calcium reading. Make a table of ranks to be used in a Spearman rank correlation test.
(b) Compute the sample test statistic. (Round your answer to three decimal places.)
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