Neco Model Questions Vol1 2023 Agricultural Science Question 19
Practice objective / multiple choice question 19 from the 2023 Neco Model Questions Vol1 Agricultural Science examination.
Agricultural Extension: An extension officer wishes to estimate the proportion of farmers who have adopted a new technology with a margin of error of \(\pm5\)% at the 95 % confidence level. From a pilot survey the expected adoption proportion is \(p=0.40\). Using the formula \(n = \frac{Z^{2}p(1-p)}{d^{2}}\) (where \(Z=1.96\) for 95 % confidence, \(p\) is the expected proportion and \(d\) the desired margin of error), determine the minimum sample size required, rounding up to the next whole farmer.
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This is Neco Model Questions Vol1 2023 Agricultural Science Question 19. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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