91影视

We have to Identify the experimental units in this experimen

The experimental units are the members of the population from whose data was gathered.

EXPERIMENTAL UNITS = $72$ acacia trees chosen at random

Individuals are purposely subjected to a treatment in order to study their reactions in an experiment.

In the tree, place an active, empty, or no beehive.

A response variable is a variable that assesses a study's outcome or result.

DAMAGE CAUSED BY ELEPHANTS = RESPONSE VARIABLE

We have to tell that why it is beneficial to include some trees that have no hives

Choose the first of the two-digit numbers. If the number is between $01$and $72$, the matching tree will receive treatment, otherwise on to the next 2-digit number.

Continue until a total of $24$(unique) trees have been assigned to treatment $1$.

Select 24 (unique) trees to get treatment $2$in the same way (trees did not receive treatment 1).

We have to tell about how the researchers could carry out a completely randomized design.

Randomly place active beehives in $24$ acacia trees, empty beehives in $24$ acacia trees, and empty beehives in the remaining 24 acacia trees. To accomplish so, give the trees numbers ranging from $01to72$ and pick $24$2-digit numbers from this range using a random number table. The active beehives will be located in such trees. The vacant beehives will be assigned to the trees linked with the next $24$ 2-digit numbers, while the remaining $24$ trees will remain without beehives. Compare the damage caused by elephants to trees with active beehives, empty beehives, and beehives that aren't active.