Draw a box plot of half-life for each drug in Exercise 15. Do the assumptions necessary for the test in Exercise 15 seem to be satisfied by the data? Explain. Exercise 15 In Exercise 13 of Chapter 1,...

Draw a box plot of half-life for each drug in Exercise 15. Do the assumptions necessary for the test in Exercise 15 seem to be satisfied by the data? Explain.

Exercise 15

In Exercise 13 of Chapter 1, the half-life of aminoglycosides from a sample of 43 patients was recorded. The data are reproduced in Table 5.21. Use these data to see whether there is a significant difference in the mean half-life of Amikacin and Gentamicin. (Use α = 0:10.)

Exercise 13

Eight samples of effluent from a pulp mill were each divided into 10 batches. From each sample, 5 randomly selected batches were subjected to a treatment process intended to remove toxic substances. Five fish of the same species were placed in each batch, and the mean number surviving in the 5 treated and untreated portions of each effluent sample after 5 days were recorded and are given in Table 5.20. Test to see whether the treatment increased the mean number of surviving fish.