Question

Q-6 (7.14). Consider 30 mice with an advanced stage of leukemia. Two new serums were developed in the lab to fight leukemia. We randomly divide the 30 mice into 3 groups of 10. The first group received serum 1, the second group received serum 2 and the third group received no treatment. This type of experiment is called a completely randomized design. Consider the following comparative boxplots. 5 4 Survival Time (in years) 3 2 Serum 1 Serum 2 No Treatment (a) Which group has the largest survival time? (b) Which group has the largest median survival time? (c) Which group of survival times is the least dispersed? (d) Which group has the largest range in survival times? (e) Are there any groups with similar median survival times? (f) Which groups of survival times are similarly dispersed?

Answer 1

solution:

Consider 30 mice with an advanced stage of leukemia.

Result:

a). Serum 2

b). Serum 1

c). Serum 1

d). Serum 2

e). Serum 2 and no treatment group

f). Serum 2 and no treatment group1

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