For a certain experiment, the available experimental units are eight rats, of which four are female (F1, F2, F3, F4) and four are male (M1, M2, M3, M4). There are to be four treatment groups, A, B, C, and D. If a randomized block design is used, with the experimental units blocked by gender, which of the following assignments of treatments is impossible?
a. A (F1, M1), B (F2, M2), C (F3, M3), D (F4, M4)
b. A (F1, M2), B (F2, M3), C (F3, M4), D (F4, M1)
c. A (F1, M1), B (F3, F2), C (F4, M1), D (M3, M4)
d. A (F4, M1), B (F2, M3), C (F3, M2), D (F1, M4)
e. A (F4, M1), B (F1, M4), C (F3, M2), D (F2, M3)

Question

contestada

Respuesta :

tfarooqui tfarooqui · Answer 1 · 2019-12-19T00:21:10+01:00

Answer:

c

Step-by-step explanation:

In the experimental design we are choosing a random rats from both sets either male and female.

each set contains 2 elements (A,B), where A is a Female i.e F1, F2,F3,F4

and B is a male i.e M1,M2,M3,M4.

none of the sets can have 2 male or 2 female.

Only option 'C' has sets which contains B (F3, F2) and D (M3, M4) which is impossible.

Hence c is the answer.

Answer Link

okpalawalter8 okpalawalter8 · Answer 2 · 2022-04-13T16:12:58+02:00

The assignment of treatments that is impossible is given as

c.) A (F1, M1), B (F3, F2), C (F4, M1), D (M3, M4)

Treatment, the way by which someone acts towards someone else.

Generally, from the parameters, we see that

A is a Female i.e F1, F2,F3,F4

B is a male i.e M1,M2,M3,M4.

In conclusion, the sets can't have 2 male or 2 female.

Therefore, we have

c.) A (F1, M1), B (F3, F2), C (F4, M1), D (M3, M4)