3.4 Determination of Sample Size
In order to get a representation of the entire population, the Taro Yamani statistical formula was employed.
According to Taro Yamene (1964) the formula is stated as follows
n = N
1+N(e)2
Where n = represents the sample size
N = represents the population
e = represents the margin of error
I = constant
For the purpose of this study, N will be equal to 489, e will be assumed to be 5%.
Therefore the sample size for this research work will be
n = 489
1+489 (0.05)2
= 489
1+ 489 (0.0025)
= 489
1 + 1.223
= 489
2.223
n = 220
The content validity of the instrument were done as pilot copies were sent a percentage of professional who
certified the contents as being capable of eliciting desired information from the target audience.