The morning and evening body temperature measurements are paired.
Step-by-step explanation:
We are given the following information in the question:
A sample of 40 indoor cats is obtained. Each cat's body temperature measured in the morning and again in the evening.
Paired or dependent Variables:
This means that there are same participants more than once in a test.
They are also known as related groups.
Dependent variable are related groups where two groups are referred to groups of participants that are measured at two different points of time or under two different condition.
There is only one group of variables, but there are two conditions associated or time interval.
In this case the group of participants is the group of 40 cats and their body temperature are measure in two different time, morning and evening.
Thus, the morning and evening body temperature measurements are paired.
