Homework Sourseidentify the variables in the study ii for each variable tel
identify the variable(s) in the study,
(ii) for each variable tell the type of variable (e.g.,categorical and ordinal, discrete, etc.),
(iii) identify the observational unit (the thing sampled),and (iv) determine the sample size
A) biologist measured the number of leaves on each of 25 plants.
B) A physician recorded the number of seizures that each of 20 patients with severe epilepsy had during an eight-week period.
Solution
A) biologist measured the number of leaves on each of 25 plants.
(ii)
Variable: Number of leaves
Type: discrete, quantitaive
(iii)
Observational unit: Leaves of plants under study
(iv)
Sample szie: 25
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(b)
(ii)
Variable: Number of seizures
Type: discrete, quantitaive
(iii)
Observational unit: the number of seizures for each patients under study
(iv)
Sample szie: 20
